JNIEXPORT jint JNICALL
Java_OnloadTemplateSend_Alloc ( JNIEnv* env, jclass cls,
jint fd, jobject out, jobject data,
jint flags )
{
jint rval = 0;
onload_template_handle handle = 0;
struct iovec initial_msg;
initial_msg.iov_base = (*env)->GetDirectBufferAddress( env, data );
if ( !initial_msg.iov_base )
return -ENOMEM;
initial_msg.iov_len = (*env)->GetDirectBufferCapacity( env, data );
if ( initial_msg.iov_len < 1 )
return -ENOMEM;
rval = onload_msg_template_alloc(fd, &initial_msg, 1, &handle, flags );
if ( rval >= 0 ) {
SetLongOnObject( env, out, "opaque", (long)handle );
SetIntOnObject( env, out, "fd", fd );
} else {
SetLongOnObject( env, out, "opaque", -1 );
SetIntOnObject( env, out, "fd", -1 );
}
return rval;
}
int templated_send(int handle, struct iovec* iov)
{
onload_template_handle tmpl;
struct onload_template_msg_update_iovec update;
struct iovec initial;
initial.iov_base = iov->iov_base;
initial.iov_len = iov->iov_len;
update.otmu_base = iov->iov_base;
update.otmu_len = iov->iov_len;
update.otmu_offset = 0;
update.otmu_flags = 0;
/* Note: This is initialising, and then updating to the same values.
* A real application would update only a subset of the values, and
* usually with different values.
*/
TRY( onload_msg_template_alloc(handle, &initial, 1, &tmpl, 0));
return onload_msg_template_update(handle, tmpl, &update, 1,
ONLOAD_TEMPLATE_FLAGS_SEND_NOW);
}
