@@ -3,6 +3,7 @@

 #include <stdlib.h>

 #include <ctype.h>

 #include <limits.h>

+#include <unistd.h>

 #include "match.h"

 #include "tty.h"

@@ -20,16 +21,17 @@ int main(int argc, char *argv[]) {

 	choices_t choices;

 	choices_init(&choices, &options);

-	choices_fread(&choices, stdin);

 	if (options.benchmark) {

 		if (!options.filter) {

 			fprintf(stderr, "Must specify -e/--show-matches with --benchmark\n");

 			exit(EXIT_FAILURE);

 		}

+		choices_fread(&choices, stdin);

 		for (int i = 0; i < options.benchmark; i++)

 			choices_search(&choices, options.filter);

 	} else if (options.filter) {

+		choices_fread(&choices, stdin);

 		choices_search(&choices, options.filter);

 		for (size_t i = 0; i < choices_available(&choices); i++) {

 			if (options.show_scores)

@@ -38,9 +40,16 @@ int main(int argc, char *argv[]) {

 		}

 	} else {

 		/* interactive */

+

+		if (isatty(STDIN_FILENO))

+			choices_fread(&choices, stdin);

+

 		tty_t tty;

 		tty_init(&tty, options.tty_filename);

+		if (!isatty(STDIN_FILENO))

+			choices_fread(&choices, stdin);

+

 		if (options.num_lines > choices.size)

 			options.num_lines = choices.size;

@@ -320,6 +320,13 @@ class FzyTest < Minitest::Test

     @tty.assert_matches "> foo\nfoo"

   end

+  # https://github.com/jhawthorn/fzy/issues/81

+  def test_slow_stdin_fast_user

+    @tty = TTYtest.new_terminal(%{(echo aa; echo bc; echo bd; sleep 0.5) | #{FZY_PATH}})

+    @tty.send_keys("b\r")

+    @tty.assert_matches "bc"

+  end

+

   def test_help

     @tty = TTYtest.new_terminal(%{#{FZY_PATH} --help})

     @tty.assert_matches <<TTY