From fbfe8689a83884c88518b22f0b5bb2dbf453e408 Mon Sep 17 00:00:00 2001
From: Bruce Hill <bruce@bruce-hill.com>
Date: Mon, 17 Jun 2019 16:45:24 -0700
Subject: [PATCH] Changing IO code to no longer use poll() in favor of just
 reading input and using VMIN and VTIME.

---
 bb.c    | 5 +++--
 bterm.h | 7 ++-----
 2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/bb.c b/bb.c
index 8aed841..6e04403 100644
--- a/bb.c
+++ b/bb.c
@@ -6,6 +6,7 @@
 #include <dirent.h>
 #include <fcntl.h>
 #include <limits.h>
+#include <poll.h>
 #include <signal.h>
 #include <stdarg.h>
 #include <stdio.h>
@@ -196,8 +197,8 @@ void init_term(void)
     }
     memcpy(&bb_termios, &orig_termios, sizeof(bb_termios));
     cfmakeraw(&bb_termios);
-    bb_termios.c_cc[VMIN] = 0;
-    bb_termios.c_cc[VTIME] = 0;
+    bb_termios.c_cc[VMIN] = 1;
+    bb_termios.c_cc[VTIME] = 1;
     if (tcsetattr(fileno(tty_out), TCSAFLUSH, &bb_termios) == -1)
         err("Couldn't tcsetattr");
     update_term_size(0);
diff --git a/bterm.h b/bterm.h
index dbade7a..c233c84 100644
--- a/bterm.h
+++ b/bterm.h
@@ -10,7 +10,6 @@
 #ifndef FILE__BTERM_H
 #define FILE__BTERM_H
 
-#include <poll.h>
 #include <stdio.h>
 
 #define KEY_F1               (0xFFFF-0)
@@ -112,11 +111,9 @@ const char *bkeyname(int key);
 
 static inline int nextchar(int fd, int timeout)
 {
+    (void)timeout;
     char c;
-    struct pollfd pfd = {fd, POLLIN, 0};
-    if (poll(&pfd, 1, timeout) > 0)
-        return read(fd, &c, 1) == 1 ? c : -1;
-    return -1;
+    return read(fd, &c, 1) == 1 ? c : -1;
 }
 
 /*