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fix a deadlock.

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rsc 2004-04-20 15:16:18 +00:00
parent 0e25d6094f
commit 99c75f3c50
1 changed files with 7 additions and 1 deletions
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8
src/cmd/9term/bsdpty.c
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@ -106,7 +106,13 @@ setecho(int fd, int newe)
if(old != newe){ if(old != newe){
ttmode.c_lflag &= ~ECHO; ttmode.c_lflag &= ~ECHO;
ttmode.c_lflag |= newe; ttmode.c_lflag |= newe;
if(tcsetattr(fd, TCSADRAIN, &ttmode) < 0) /*
* I tried using TCSADRAIN here, but that causes
* hangs if there is any output waiting for us.
* I guess TCSADRAIN is intended for use by our
* clients, not by us.
*/
if(tcsetattr(fd, 0, &ttmode) < 0)
fprint(2, "tcsetattr: %r\n"); fprint(2, "tcsetattr: %r\n");
} }
return old; return old;