Merge pull request #12 from cryptlex/ahmad/unlimited-implementation

feat: unlimited implementation for host meter attribute

Author: adnan-kamili

src/main/java/com/cryptlex/lexfloatclient/HostLicenseMeterAttribute.java

@@ -1,16 +1,29 @@
 package com.cryptlex.lexfloatclient;
+import java.math.BigInteger;
 
 public class HostLicenseMeterAttribute {
 
+    /**
+     * The name of the meter attribute.
+     */
     public String name;
 
-    public int allowedUses;
+    /**
+     * The allowed uses of the meter attribute. A value of -1 indicates unlimited allowed uses.
+     */
+    public long allowedUses;
 
-    public int totalUses;
+    /**
+     * The total uses of the meter attribute.
+     */
+    public BigInteger totalUses;
 
-    public int grossUses;
+    /**
+     * The gross uses of the meter attribute. 
+     */
+    public BigInteger grossUses;
 
-    public HostLicenseMeterAttribute(String name, int allowedUses, int totalUses, int grossUses) {
+    public HostLicenseMeterAttribute(String name, long allowedUses, BigInteger totalUses, BigInteger grossUses) {
         this.name = name;
         this.allowedUses = allowedUses;
         this.totalUses = totalUses;

src/main/java/com/cryptlex/lexfloatclient/LexFloatClient.java

@@ -6,6 +6,8 @@
 import java.nio.CharBuffer;
 import java.io.UnsupportedEncodingException;
 import com.sun.jna.ptr.IntByReference;
+import com.sun.jna.ptr.LongByReference;
+import java.math.BigInteger;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -24,6 +26,11 @@ public class LexFloatClient {
      */
     public static final int LF_FAIL = 1;
 
+    // Convert long to BigInteger to correctly handle unsigned 64-bit values
+    private static BigInteger toUnsignedBigInteger(long value) {
+        return BigInteger.valueOf(value).and(BigInteger.valueOf(0xFFFFFFFFFFFFFFFFL));
+    }
+
     /**
      * Sets the product id of your application
      *
@@ -257,19 +264,20 @@ public static String GetHostLicenseMetadata(String key) throws LexFloatClientExc
      */
     public static HostLicenseMeterAttribute GetHostLicenseMeterAttribute(String name) throws LexFloatClientException, UnsupportedEncodingException {
         int status;
-        IntByReference allowedUses = new IntByReference(0);
-        IntByReference totalUses = new IntByReference(0);
-        IntByReference grossUses = new IntByReference(0);
+        LongByReference allowedUses = new LongByReference(0);
+        // These references can still hold the uint64_t values populated by the native function
+        LongByReference totalUses = new LongByReference(0);
+        LongByReference grossUses = new LongByReference(0);
 
         if (Platform.isWindows()) {
             status = LexFloatClientNative.GetHostLicenseMeterAttribute(new WString(name), allowedUses, totalUses, grossUses);
             if (LF_OK == status) {
-                return new HostLicenseMeterAttribute(name, allowedUses.getValue(), totalUses.getValue(), grossUses.getValue());
+                return new HostLicenseMeterAttribute(name, allowedUses.getValue(), toUnsignedBigInteger(totalUses.getValue()), toUnsignedBigInteger(grossUses.getValue()));
             }
         } else {
             status = LexFloatClientNative.GetHostLicenseMeterAttribute(name, allowedUses, totalUses, grossUses);
             if (LF_OK == status) {
-                return new HostLicenseMeterAttribute(name, allowedUses.getValue(), totalUses.getValue(), grossUses.getValue());
+                return new HostLicenseMeterAttribute(name, allowedUses.getValue(), toUnsignedBigInteger(totalUses.getValue()), toUnsignedBigInteger(grossUses.getValue()));
             }
         }
         throw new LexFloatClientException(status);

src/main/java/com/cryptlex/lexfloatclient/LexFloatClientNative.java

@@ -8,6 +8,7 @@
 import java.nio.CharBuffer;
 import java.nio.ByteBuffer;
 import com.sun.jna.ptr.IntByReference;
+import com.sun.jna.ptr.LongByReference;
 import com.sun.jna.Callback;
 import java.io.File;
 
@@ -55,9 +56,9 @@ public interface CallbackType extends Callback {
 
     public static native int GetHostLicenseMetadata(WString key, CharBuffer value, int length);
 
-    public static native int GetHostLicenseMeterAttribute(String name, IntByReference allowedUses, IntByReference totalUses, IntByReference grossUses);
+    public static native int GetHostLicenseMeterAttribute(String name, LongByReference allowedUses, LongByReference totalUses, LongByReference grossUses);
 
-    public static native int GetHostLicenseMeterAttribute(WString name, IntByReference allowedUses, IntByReference totalUses, IntByReference grossUses);
+    public static native int GetHostLicenseMeterAttribute(WString name, LongByReference allowedUses, LongByReference totalUses, LongByReference grossUses);
 
     public static native int GetHostLicenseExpiryDate(IntByReference expiryDate);