DBGattServer/Value: Add convenience make[_gatt]() for initializer list (byte array) with extra capacity and sizev3.2.2

2 files changed, 19 insertions, 0 deletions

diff --git a/api/direct_bt/DBGattServer.hpp b/api/direct_bt/DBGattServer.hpp
index d32de77a..d24f34df 100644
--- a/api/direct_bt/DBGattServer.hpp
+++ b/api/direct_bt/DBGattServer.hpp
@@ -535,6 +535,17 @@ namespace direct_bt {
         return jau::POctets(sourcelist, jau::endian::little);
     }
 
+    /** Convenience jau::POctets ctor function to create DBGattChar or DBGattDesc values. */
+    inline jau::POctets make_gvalue(const jau::nsize_t capacity, const jau::nsize_t size, std::initializer_list<uint8_t> sourcelist) {
+        jau::POctets p(capacity, size, jau::endian::little);
+        p.bzero();
+        const jau::nsize_t max_size = std::min(size, sourcelist.size());
+        if( 0 < max_size ) {
+            std::memcpy(p.get_wptr(), sourcelist.begin(), max_size);
+        }
+        return p;
+    }
+
     /**
      * Representing a Gatt Service object from the ::GATTRole::Server perspective.
      *
diff --git a/java/org/direct_bt/DBGattValue.java b/java/org/direct_bt/DBGattValue.java
index b695c5cd..070ee7b4 100644
--- a/java/org/direct_bt/DBGattValue.java
+++ b/java/org/direct_bt/DBGattValue.java
@@ -76,6 +76,14 @@ public class DBGattValue
         return new DBGattValue(p, p.length);
     }
 
+    /** Convenience {@link DBGattValue} ctor function. */
+    public static DBGattValue make(final int capacity, final int size, final byte[] s) {
+        final byte[] p = new byte[size];
+        final int max_size = Math.min(size, s.length);
+        System.arraycopy(s, 0, p, 0, max_size);
+        return new DBGattValue(p, capacity, true /* variable_length */);
+    }
+
     /**
      * Constructor
      * @param value the data, which length defines the maximum writable fixed length if variable length is false.