Differences From Artifact [3a4bb0d8ec]:
- File src/OFKernelEventObserver_select.m — part of check-in [734fbbb144] at 2015-06-01 18:27:40 on branch trunk — OFKernelEventObserver_select: Small Win64 fix (user: js, size: 4712) [annotate] [blame] [check-ins using]
To Artifact [fe3f6e4f8e]:
- File
src/OFKernelEventObserver_select.m
— part of check-in
[b84490ab4f]
at
2016-03-20 12:05:46
on branch 0.8
— Never block when the read buffer is non-empty
This was broken by 88f2f03. The problem only existed when something was
in the read buffer, but not processed completely, as after processing
the read buffer, it would go on to wait for data - but since not the
entire read buffer had been processed, it meant there was still data
left there that needed to be handled first. (user: js, size: 4703) [annotate] [blame] [check-ins using]
1 | /* | | | | 1 2 3 4 5 6 7 8 9 10 | /* * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 * Jonathan Schleifer <js@heap.zone> * * All rights reserved. * * This file is part of ObjFW. It may be distributed under the terms of the * Q Public License 1.0, which can be found in the file LICENSE.QPL included in * the packaging of this file. * |
︙ | ︙ | |||
59 60 61 62 63 64 65 | _maxFD = (int)_cancelFD[0]; return self; } - (void)OF_addObjectForReading: (id)object | < | | < | | > | > > | > > | > > | > < | > | | < | 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 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 | _maxFD = (int)_cancelFD[0]; return self; } - (void)OF_addObjectForReading: (id)object fileDescriptor: (int)fd { if (fd < 0 || fd > INT_MAX - 1) @throw [OFOutOfRangeException exception]; #ifndef _WIN32 if (fd >= FD_SETSIZE) @throw [OFOutOfRangeException exception]; #endif if (fd > _maxFD) _maxFD = fd; FD_SET(fd, &_readFDs); } - (void)OF_addObjectForWriting: (id)object fileDescriptor: (int)fd { if (fd < 0 || fd > INT_MAX - 1) @throw [OFOutOfRangeException exception]; #ifndef _WIN32 if (fd >= FD_SETSIZE) @throw [OFOutOfRangeException exception]; #endif if (fd > _maxFD) _maxFD = fd; FD_SET(fd, &_writeFDs); } - (void)OF_removeObjectForReading: (id)object fileDescriptor: (int)fd { /* TODO: Adjust _maxFD */ if (fd < 0) @throw [OFOutOfRangeException exception]; #ifndef _WIN32 if (fd >= FD_SETSIZE) @throw [OFOutOfRangeException exception]; #endif FD_CLR(fd, &_readFDs); } - (void)OF_removeObjectForWriting: (id)object fileDescriptor: (int)fd { /* TODO: Adjust _maxFD */ if (fd < 0) @throw [OFOutOfRangeException exception]; #ifndef _WIN32 if (fd >= FD_SETSIZE) @throw [OFOutOfRangeException exception]; #endif FD_CLR(fd, &_writeFDs); } - (void)observeForTimeInterval: (of_time_interval_t)timeInterval { id const *objects; fd_set readFDs; fd_set writeFDs; struct timeval timeout; int events; size_t i, count; [self OF_processQueue]; if ([self OF_processReadBuffers]) return; #ifdef FD_COPY FD_COPY(&_readFDs, &readFDs); FD_COPY(&_writeFDs, &writeFDs); #else readFDs = _readFDs; writeFDs = _writeFDs; |
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164 165 166 167 168 169 170 | if (events < 0) @throw [OFObserveFailedException exceptionWithObserver: self errNo: errno]; if (FD_ISSET(_cancelFD[0], &readFDs)) { char buffer; | | < < | | < < | | | 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 | if (events < 0) @throw [OFObserveFailedException exceptionWithObserver: self errNo: errno]; if (FD_ISSET(_cancelFD[0], &readFDs)) { char buffer; #ifdef OF_HAVE_PIPE OF_ENSURE(read(_cancelFD[0], &buffer, 1) == 1); #else OF_ENSURE(recvfrom(_cancelFD[0], &buffer, 1, 0, NULL, NULL) == 1); #endif } objects = [_readObjects objects]; count = [_readObjects count]; for (i = 0; i < count; i++) { void *pool = objc_autoreleasePoolPush(); int fd = [objects[i] fileDescriptorForReading]; if (FD_ISSET(fd, &readFDs) && [_delegate respondsToSelector: @selector(objectIsReadyForReading:)]) [_delegate objectIsReadyForReading: objects[i]]; objc_autoreleasePoolPop(pool); } objects = [_writeObjects objects]; count = [_writeObjects count]; for (i = 0; i < count; i++) { void *pool = objc_autoreleasePoolPush(); int fd = [objects[i] fileDescriptorForWriting]; if (FD_ISSET(fd, &writeFDs) && [_delegate respondsToSelector: @selector(objectIsReadyForWriting:)]) [_delegate objectIsReadyForWriting: objects[i]]; objc_autoreleasePoolPop(pool); } } @end |