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Fix return type from read and allow a debugger to be attached on OS X.

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This commit is contained in:
Frederich Munch 2017-01-24 00:30:33 -05:00 committed by Axel Naumann
parent 625ed58bba
commit 976800d396
1 changed files with 9 additions and 1 deletions
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10
lib/UserInterface/textinput/StreamReaderUnix.cpp
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@ -22,6 +22,9 @@
#include <unistd.h>
#include <termios.h>
#include <stdio.h>
#ifdef __APPLE__
#include <errno.h> // For EINTR
#endif
#include <cctype>
#include <cstring>
@ -297,7 +300,12 @@ namespace textinput {
buf = fReadAheadBuffer.front();
fReadAheadBuffer.pop();
} else {
size_t ret = read(fileno(stdin), &buf, 1);
ssize_t ret = read(fileno(stdin), &buf, 1);
#ifdef __APPLE__
// Allow a debugger to be attached and used on OS X.
while (ret == -1 && errno == EINTR)
ret = read(fileno(stdin), &buf, 1);
#endif
if (ret != 1) return -1;
}
return buf;