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57754ba65d
result of some changes Luoqi Chen made to src/sys/kern/tty_pty.c at revs 1.58 and 1.59, apparently to resolve some sort of race condition. (Search for EAGAIN in that file if you'd like to see). Submitted by: W Gerald Hicks <jhix@mindspring.com>
23 lines
551 B
C
23 lines
551 B
C
--- ddd/TTYAgent.C.orig Thu Aug 19 04:27:58 1999
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+++ ddd/TTYAgent.C Sun Aug 27 02:37:48 2000
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@@ -697,8 +697,19 @@
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}
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else
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{
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+#if !defined(__FreeBSD__)
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if (fcntl(master, F_SETFL, flags | O_NONBLOCK) == -1)
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_raiseIOWarning("cannot set file to non-blocking mode");
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+#else
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+ do {
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+ if(fcntl(master, F_SETFL, flags | O_NONBLOCK) != -1)
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+ break;
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+ else if(errno == EAGAIN)
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+ sleep(1);
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+ else
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+ _raiseIOWarning("cannot set file to non-blocking mode");
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+ } while(errno == EAGAIN);
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+#endif
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}
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#endif
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