From 5bf90d1008a7d40558740a7c863d7094b423424a Mon Sep 17 00:00:00 2001
From: Manuel Amago <mamago@gmail.com>
Date: Sun, 8 Sep 2019 15:12:16 +0100
Subject: Convert to write to a "shared ring buffer".

First steps, not actually fully functional yet (i.e. ring buffer is not
actually a ring buffer, and there is no log printer polling the other
side).
---
 src/main/java/org/mamago/util/Bits.java | 16 ++++++++++++++++
 src/main/java/org/mamago/util/Cast.java | 16 ++++++++++++++++
 2 files changed, 32 insertions(+)
 create mode 100644 src/main/java/org/mamago/util/Bits.java
 create mode 100644 src/main/java/org/mamago/util/Cast.java

(limited to 'src/main/java/org/mamago/util')

diff --git a/src/main/java/org/mamago/util/Bits.java b/src/main/java/org/mamago/util/Bits.java
new file mode 100644
index 0000000..4672ea9
--- /dev/null
+++ b/src/main/java/org/mamago/util/Bits.java
@@ -0,0 +1,16 @@
+package org.mamago.util;
+
+public class Bits {
+    // Prevent instantiation
+    private Bits() {}
+
+    public static int roundUpToLongSize(int size) {
+        return roundUpToSize(size, 8);
+    }
+
+    public static int roundUpToSize(int size, int width) {
+        // Formula:
+        //   (size + w) / w * w; // Adding w rounds up to the next whole width
+        return ((size + width) / width) * width;
+    }
+}
diff --git a/src/main/java/org/mamago/util/Cast.java b/src/main/java/org/mamago/util/Cast.java
new file mode 100644
index 0000000..4ed3d47
--- /dev/null
+++ b/src/main/java/org/mamago/util/Cast.java
@@ -0,0 +1,16 @@
+package org.mamago.util;
+
+public class Cast {
+    // Prevent instantiation
+    private Cast() {}
+
+    public static byte asByte(int i) {
+        // @Fixme[MA]: check whether casting give out-of-bounds check, otherwise add in for safety
+        return (byte) i;
+    }
+
+    public static short asShort(int i) {
+        // @Fixme[MA]: check whether casting give out-of-bounds check, otherwise add in for safety
+        return (byte) i;
+    }
+}
-- 
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