patch 8.2.5057: using gettimeofday() for timeout is very inefficient
Problem: Using gettimeofday() for timeout is very inefficient.
Solution: Set a platform dependent timer. (Paul Ollis, closes #10505)
diff --git a/src/testdir/test_search.vim b/src/testdir/test_search.vim
index e1a62bd..b354a2f 100644
--- a/src/testdir/test_search.vim
+++ b/src/testdir/test_search.vim
@@ -1550,6 +1550,32 @@
bwipe!
endfunc
+func Test_search_timeout()
+ new
+ let pattern = '\%#=1a*.*X\@<=b*'
+ let search_timeout = 0.02
+ let slow_target_timeout = search_timeout * 15.0
+
+ for n in range(40, 400, 30)
+ call setline(1, ['aaa', repeat('abc ', n), 'ccc'])
+ let start = reltime()
+ call search(pattern, '', 0)
+ let elapsed = reltimefloat(reltime(start))
+ if elapsed > slow_target_timeout
+ break
+ endif
+ endfor
+ call assert_true(elapsed > slow_target_timeout)
+
+ let max_time = elapsed / 2.0
+ let start = reltime()
+ call search(pattern, '', 0, float2nr(search_timeout * 1000))
+ let elapsed = reltimefloat(reltime(start))
+ call assert_true(elapsed < max_time)
+
+ bwipe!
+endfunc
+
func Test_search_display_pattern()
new
call setline(1, ['foo', 'bar', 'foobar'])