Re: [PATCH/RFC 2/5] compat/terminal: factor out echo-disabling

On Fri, Nov 30, 2012 at 06:59:30PM +0100, Johannes Schindelin wrote:

quoted

diff --git a/compat/terminal.c b/compat/terminal.c
index bbb038d..3217838 100644
--- a/compat/terminal.c
+++ b/compat/terminal.c

@@ -14,6 +14,7 @@ static void restore_term(void)
 		return;
 
 	tcsetattr(term_fd, TCSAFLUSH, &old_term);
+	close(term_fd);
 	term_fd = -1;
 }

That looks like an independent resource leak fix... correct?

I don't think so. In the current code, term_fd does not take ownership
of the fd. It is fundamentally part of the FILE* in git_terminal_prompt,
and is closed when we fclose() that. But in Erik's refactor, we actually
open a _second_ descriptor to /dev/tty, which needs to be closed.

I don't think there is any reason that should not work (the terminal
characteristics should be per-tty, not per-descriptor), though it does
feel a little hacky to have to open /dev/tty twice.

-Peff

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