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add commented-out getClassName() in case it's useful in the future.

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This commit is contained in:
Eric House 2015-08-02 16:41:28 -07:00
parent b3ca4ee223
commit a349ab4bee
1 changed files with 46 additions and 2 deletions
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48
xwords4/android/XWords4/jni/andutils.c
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@ -431,9 +431,15 @@ getMethodID( JNIEnv* env, jobject obj, const char* proc, const char* sig )
XP_ASSERT( !!env );
jclass cls = (*env)->GetObjectClass( env, obj );
XP_ASSERT( !!cls );
#ifdef DEBUG
char buf[128] = {0};
/* int len = sizeof(buf); */
/* getClassName( env, obj, buf, &len ); */
#endif
jmethodID mid = (*env)->GetMethodID( env, cls, proc, sig );
if ( !mid ) {
XP_LOGF( "%s: no mid for proc %s, sig %s", __func__, proc, sig );
XP_LOGF( "%s: no mid for proc %s, sig %s in object of class %s",
__func__, proc, sig, buf );
}
XP_ASSERT( !!mid );
deleteLocalRef( env, cls );
@ -725,8 +731,46 @@ android_debugf( const char* format, ... )
(void)__android_log_write( ANDROID_LOG_DEBUG, "xw4", buf );
}
#endif
/* Print an object's class name into buffer.
*
* NOTE: this must be called in advance of any jni error, because methods on
* env can't be called once there's an exception pending.
*/
#if 0
static void
getClassName( JNIEnv* env, jobject obj, char* out, int* outLen )
{
XP_ASSERT( !!obj );
jclass cls1 = (*env)->GetObjectClass( env, obj );
// First get the class object
jmethodID mid = (*env)->GetMethodID( env, cls1, "getClass",
"()Ljava/lang/Class;" );
jobject clsObj = (*env)->CallObjectMethod( env, obj, mid );
// Now get the class object's class descriptor
jclass cls2 = (*env)->GetObjectClass( env, clsObj );
// Find the getName() method on the class object
mid = (*env)->GetMethodID( env, cls2, "getName", "()Ljava/lang/String;" );
// Call the getName() to get a jstring object back
jstring strObj = (jstring)(*env)->CallObjectMethod( env, clsObj, mid );
jint slen = (*env)->GetStringUTFLength( env, strObj );
if ( slen < *outLen ) {
*outLen = slen;
(*env)->GetStringUTFRegion( env, strObj, 0, slen, out );
out[slen] = '\0';
} else {
*outLen = 0;
out[0] = '\0';
}
deleteLocalRefs( env, clsObj, cls1, cls2, strObj, DELETE_NO_REF );
LOG_RETURNF( "%s", out );
}
#endif
#endif
/* #ifdef DEBUG */
/* XP_U32 */