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Some minor performance improvements - most notably, don't search the

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input state table if the next character matches the same state as before.
This commit is contained in:
nicm
2019-09-24 20:44:58 +00:00
parent e8adcae0f2
commit e3359f8349
4 changed files with 34 additions and 24 deletions
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27
input.c
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@ -888,7 +888,8 @@ input_parse_buffer(struct window_pane *wp, u_char *buf, size_t len)
{
struct input_ctx *ictx = wp->ictx;
struct screen_write_ctx *sctx = &ictx->ctx;
const struct input_transition *itr;
const struct input_state *state = NULL;
const struct input_transition *itr = NULL;
size_t off = 0;
if (len == 0)
@ -916,16 +917,22 @@ input_parse_buffer(struct window_pane *wp, u_char *buf, size_t len)
ictx->ch = buf[off++];
/* Find the transition. */
itr = ictx->state->transitions;
while (itr->first != -1 && itr->last != -1) {
if (ictx->ch >= itr->first && ictx->ch <= itr->last)
break;
itr++;
}
if (itr->first == -1 || itr->last == -1) {
/* No transition? Eh? */
fatalx("no transition from state");
if (ictx->state != state ||
itr == NULL ||
ictx->ch < itr->first ||
ictx->ch > itr->last) {
itr = ictx->state->transitions;
while (itr->first != -1 && itr->last != -1) {
if (ictx->ch >= itr->first && ictx->ch <= itr->last)
break;
itr++;
}
if (itr->first == -1 || itr->last == -1) {
/* No transition? Eh? */
fatalx("no transition from state");
}
}
state = ictx->state;
/*
* Any state except print stops the current collection. This is