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vere: suppress null writes in term.c

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This commit is contained in:
Joe Bryan 2021-09-13 11:47:15 -04:00
parent 42e8158be9
commit 412bae2cd4
1 changed files with 13 additions and 6 deletions
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19
pkg/urbit/vere/io/term.c
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@ -298,7 +298,9 @@ static void
_term_it_dump_buf(u3_utty* uty_u, _term_it_dump_buf(u3_utty* uty_u,
uv_buf_t* buf_u) uv_buf_t* buf_u)
{ {
_term_it_write(uty_u, buf_u, 0); if ( buf_u->len ) {
_term_it_write(uty_u, buf_u, 0);
}
} }
/* _term_it_dump(): write static vector. /* _term_it_dump(): write static vector.
@ -315,12 +317,17 @@ _term_it_dump(u3_utty* uty_u,
/* _term_it_send(): write dynamic vector, freeing pointer. /* _term_it_send(): write dynamic vector, freeing pointer.
*/ */
static void static void
_term_it_send(u3_utty* uty_u, _term_it_send(u3_utty* uty_u,
c3_w len_w, c3_w len_w,
const c3_y* hun_y) c3_y* hun_y)
{ {
uv_buf_t buf_u = uv_buf_init((c3_c*)hun_y, len_w); if ( len_w ) {
_term_it_write(uty_u, &buf_u, (void*)hun_y); uv_buf_t buf_u = uv_buf_init((c3_c*)hun_y, len_w);
_term_it_write(uty_u, &buf_u, (void*)hun_y);
}
else {
c3_free(hun_y);
}
} }
/* _term_it_send_csi(): send csi escape sequence /* _term_it_send_csi(): send csi escape sequence