Differences From Artifact [95f2f3be53]:
- File src/OFStreamObserver.m — part of check-in [61cad3ee76] at 2011-04-01 17:10:45 on branch trunk — Call -[releaseObjects] after calling the delegate. (user: js, size: 9508) [annotate] [blame] [check-ins using]
To Artifact [864995cc48]:
- File
src/OFStreamObserver.m
— part of check-in
[a61ab37726]
at
2011-04-01 22:14:32
on branch trunk
— Cancel the currently blocking -[observe] when the stream set is changed.
Not working on win32 yet, it will be ported to it later as it's not that
easy there, since select() can only observe sockets. (user: js, size: 10141) [annotate] [blame] [check-ins using]
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18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 | + + + + + + + + + + + + + + + + + | #define OF_STREAM_OBSERVER_M #include <string.h> #include <assert.h> #include <unistd.h> #ifdef OF_HAVE_POLL # include <poll.h> #endif #import "OFStreamObserver.h" #import "OFDataArray.h" #import "OFArray.h" #import "OFDictionary.h" #import "OFStream.h" #import "OFNumber.h" #import "OFAutoreleasePool.h" #import "OFInitializationFailedException.h" #import "OFOutOfRangeException.h" enum { QUEUE_ADD = 0, QUEUE_REMOVE = 1, QUEUE_READ = 0, QUEUE_WRITE = 2 }; @implementation OFStreamObserver + observer { return [[[self alloc] init] autorelease]; } - init { self = [super init]; @try { struct pollfd p = { 0, POLLIN, 0 }; readStreams = [[OFMutableArray alloc] init]; writeStreams = [[OFMutableArray alloc] init]; queue = [[OFMutableArray alloc] init]; queueInfo = [[OFMutableArray alloc] init]; #ifdef OF_HAVE_POLL fds = [[OFDataArray alloc] initWithItemSize: sizeof(struct pollfd)]; fdToStream = [[OFMutableDictionary alloc] init]; #else FD_ZERO(&readfds); FD_ZERO(&writefds); #endif if (pipe(cancelFd)) @throw [OFInitializationFailedException newWithClass: isa]; #ifdef OF_HAVE_POLL p.fd = cancelFd[0]; [fds addItem: &p]; #else FD_SET(cancelFd[0], fdset); nfds = cancelFd[0] + 1; #endif } @catch (id e) { [self release]; @throw e; } return self; } |
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194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 | 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 | + + + + + + + + | OFNumber *qi = [OFNumber numberWithInt: QUEUE_ADD | QUEUE_READ]; @synchronized (queue) { [queue addObject: stream]; [queueInfo addObject: qi]; } write(cancelFd[1], "", 1); [pool release]; } - (void)addStreamToObserveForWriting: (OFStream*)stream { OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init]; OFNumber *qi = [OFNumber numberWithInt: QUEUE_ADD | QUEUE_WRITE]; @synchronized (queue) { [queue addObject: stream]; [queueInfo addObject: qi]; } write(cancelFd[1], "", 1); [pool release]; } - (void)removeStreamToObserveForReading: (OFStream*)stream { OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init]; OFNumber *qi = [OFNumber numberWithInt: QUEUE_REMOVE | QUEUE_READ]; @synchronized (queue) { [queue addObject: stream]; [queueInfo addObject: qi]; } write(cancelFd[1], "", 1); [pool release]; } - (void)removeStreamToObserveForWriting: (OFStream*)stream { OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init]; OFNumber *qi = [OFNumber numberWithInt: QUEUE_REMOVE | QUEUE_WRITE]; @synchronized (queue) { [queue addObject: stream]; [queueInfo addObject: qi]; } write(cancelFd[1], "", 1); [pool release]; } - (void)_processQueue { @synchronized (queue) { |
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353 354 355 356 357 358 359 360 361 362 363 364 365 366 | 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 | + + + + + + + + | if (poll(fds_c, (nfds_t)nfds, timeout) < 1) return NO; for (i = 0; i < nfds; i++) { OFNumber *num; OFStream *stream; if (fds_c[i].fd == cancelFd[0]) { char buf; read(cancelFd[0], &buf, 1); continue; } if (fds_c[i].revents & POLLIN) { num = [OFNumber numberWithInt: fds_c[i].fd]; stream = [fdToStream objectForKey: num]; [delegate streamDidBecomeReadyForReading: stream]; [pool releaseObjects]; } |
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391 392 393 394 395 396 397 398 399 400 401 402 403 404 | 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 | + + + + + | writefds_ = writefds; exceptfds_ = exceptfds; # endif if (select(nfds, &readfds_, &writefds_, &exceptfds_, (timeout != -1 ? &tv : NULL)) < 1) return NO; if (FD_ISSET(cancelFd[0], &readfds_)) { char buf; read(cancelFd[0], &buf, 1); } for (i = 0; i < count; i++) { int fd = [cArray[i] fileDescriptor]; if (FD_ISSET(fd, &readfds_)) { [delegate streamDidBecomeReadyForReading: cArray[i]]; [pool releaseObjects]; |
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