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Move echo/edit state change functionality out of ldisc_send.

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I'm not actually sure why we've always had back ends notify ldisc of
changes to echo/edit settings by giving ldisc_send(ldisc,NULL,0,0) a
special meaning, instead of by having a separate dedicated notify
function with its own prototype and parameter set. Coverity's recent
observation that the two kinds of call don't even have the same
requirements on the ldisc (particularly, whether ldisc->term can be
NULL) makes me realise that it's really high time I separated the two
conceptually different operations into actually different functions.

While I'm here, I've renamed the confusing ldisc_update() function
which that special operation ends up feeding to, because it's not
actually a function applying to an ldisc - it applies to a front end.
So ldisc_send(ldisc,NULL,0,0) is now ldisc_echoedit_update(ldisc), and
that in turn figures out the current echo/edit settings before passing
them on to frontend_echoedit_update(). I think that should be clearer.
This commit is contained in:
Simon Tatham
2014-11-22 16:12:47 +00:00
parent d870b5650e
commit c269dd0135
12 changed files with 32 additions and 57 deletions
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6
windows/window.c
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@ -219,7 +219,7 @@ const int share_can_be_downstream = TRUE;
const int share_can_be_upstream = TRUE;
/* Dummy routine, only required in plink. */
void ldisc_update(void *frontend, int echo, int edit)
void frontend_echoedit_update(void *frontend, int echo, int edit)
{
}
@ -2236,7 +2236,7 @@ static LRESULT CALLBACK WndProc(HWND hwnd, UINT message,
*/
if (ldisc) {
ldisc_configure(ldisc, conf);
ldisc_send(ldisc, NULL, 0, 0);
ldisc_echoedit_update(ldisc);
}
if (pal)
DeleteObject(pal);
@ -2379,7 +2379,7 @@ static LRESULT CALLBACK WndProc(HWND hwnd, UINT message,
case IDM_RESET:
term_pwron(term, TRUE);
if (ldisc)
ldisc_send(ldisc, NULL, 0, 0);
ldisc_echoedit_update(ldisc);
break;
case IDM_ABOUT:
showabout(hwnd);