Interface LibExtism

src/main/java/org/extism/sdk/LibExtism.java:8–175

Wrapper around the Extism library.

 * Wrapper around the Extism library.
 */
public interface LibExtism extends Library {

    /**
     * Holds the extism library instance.
     * Resolves the extism library based on the resolution algorithm defined in {@link com.sun.jna.NativeLibrary}.
     */
    LibExtism INSTANCE = Native.load("extism", LibExtism.class);

    interface InternalExtismFunction extends Callback {
        void invoke(
                Pointer currentPlugin,
                ExtismVal inputs,
                int nInputs,
                ExtismVal outputs,
                int nOutputs,
                Pointer data
        );
    }

    @Structure.FieldOrder({"t", "v"})
    class ExtismVal extends Structure {
        public int t;
        public ExtismValUnion v;
    }
    class ExtismValUnion extends Union {
        public int i32;
        public long i64;
        public long ptr;
        public float f32;
        public double f64;
    }

    enum ExtismValType {
        I32(0),
        I64(1),
        // PTR is an alias for I64
        PTR(1),
        F32(2),
        F64(3),
        V128(4),
        FuncRef(5),
        ExternRef(6);

        public final int v;

        ExtismValType(int value) {
            this.v = value;
        }
    }

    Pointer extism_function_new(String name,
                                int[] inputs,
                                int nInputs,
                                int[] outputs,
                                int nOutputs,
                                InternalExtismFunction func,
                                Pointer userData,
                                Pointer freeUserData);