Log sample size

app/src/main/java/eu/faircode/email/CharsetHelper.java

@@ -111,18 +111,20 @@ class CharsetHelper {
 
     private static class DetectResult {
         String charset;
+        int sample_size;
         int bytes_consumed;
         boolean is_reliable;
 
-        DetectResult(String charset, int bytes_consumed, boolean is_reliable) {
+        DetectResult(String charset, int sample_size, int bytes_consumed, boolean is_reliable) {
             this.charset = charset;
+            this.sample_size = sample_size;
             this.bytes_consumed = bytes_consumed;
             this.is_reliable = is_reliable;
         }
 
         @Override
         public String toString() {
-            return charset + " c=" + bytes_consumed + " r=" + is_reliable;
+            return charset + " s=" + bytes_consumed + "/" + sample_size + " r=" + is_reliable;
         }
     }
 }

app/src/main/jni/charset.cc

@@ -42,7 +42,12 @@ Java_eu_faircode_email_CharsetHelper_jni_1detect(JNIEnv *env, jclass type, jbyte
     env->ReleaseByteArrayElements(_octets, octets, JNI_ABORT);
 
     jclass cls = env->FindClass("eu/faircode/email/CharsetHelper$DetectResult");
-    jmethodID ctor = env->GetMethodID(cls, "<init>", "(Ljava/lang/String;IZ)V");
+    jmethodID ctor = env->GetMethodID(cls, "<init>", "(Ljava/lang/String;IIZ)V");
     jstring jname = env->NewStringUTF(name);
-    return env->NewObject(cls, ctor, jname, (jint) bytes_consumed, (jboolean) is_reliable);
+    return env->NewObject(
+            cls, ctor,
+            jname,
+            (jint) len,
+            (jint) bytes_consumed,
+            (jboolean) is_reliable);
 }