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If the current screen was complex enough, it was possible to make redraw

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itself hit the "terminal can't keep up" check. To avoid this, record how
much data we send during redraw (we know we will be starting with 0) and
skip the check until it has been flushed. GitHub issue 912.
This commit is contained in:
nicm
2017-05-09 13:04:36 +00:00
parent 18f36906a9
commit 3b35daacf7
3 changed files with 20 additions and 2 deletions
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11
tty.c
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@ -233,7 +233,14 @@ tty_write_callback(__unused int fd, __unused short events, void *data)
return;
log_debug("%s: wrote %d bytes (of %zu)", c->name, nwrite, size);
if (tty_block_maybe(tty))
if (c->redraw > 0) {
if ((size_t)nwrite >= c->redraw)
c->redraw = 0;
else
c->redraw -= nwrite;
log_debug("%s: waiting for redraw, %zu bytes left", c->name,
c->redraw);
} else if (tty_block_maybe(tty))
return;
if (EVBUFFER_LENGTH(tty->out) != 0)
@ -488,7 +495,7 @@ tty_add(struct tty *tty, const char *buf, size_t len)
}
evbuffer_add(tty->out, buf, len);
log_debug("%s: %.*s", c->name, (int)len, (const char *)buf);
log_debug("%s: %.*s", c->name, (int)len, buf);
c->written += len;
if (tty_log_fd != -1)