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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
// Generated by jextract
package org.apache.tomcat.util.openssl;
import java.lang.foreign.Arena;
import java.lang.foreign.FunctionDescriptor;
import java.lang.foreign.Linker;
import java.lang.foreign.MemorySegment;
import java.lang.invoke.MethodHandle;
/**
* {@snippet lang = c : * typedef int (pem_password_cb)(char *, int, int, void *)
* }
*/
@SuppressWarnings("javadoc")
public class pem_password_cb {
/**
* The function pointer signature, expressed as a functional interface
*/
public interface Function {
int apply(MemorySegment buf, int size, int rwflag, MemorySegment userdata);
}
private static final FunctionDescriptor $DESC = FunctionDescriptor.of(openssl_h.C_INT, openssl_h.C_POINTER,
openssl_h.C_INT, openssl_h.C_INT, openssl_h.C_POINTER);
/**
* The descriptor of this function pointer
*/
public static FunctionDescriptor descriptor() {
return $DESC;
}
private static final MethodHandle UP$MH = openssl_h.upcallHandle(pem_password_cb.Function.class, "apply", $DESC);
/**
* Allocates a new upcall stub, whose implementation is defined by {@code fi}. The lifetime of the returned segment
* is managed by {@code arena}
*/
public static MemorySegment allocate(pem_password_cb.Function fi, Arena arena) {
return Linker.nativeLinker().upcallStub(UP$MH.bindTo(fi), $DESC, arena);
}
private static final MethodHandle DOWN$MH = Linker.nativeLinker().downcallHandle($DESC);
/**
* Invoke the upcall stub {@code funcPtr}, with given parameters
*/
public static int invoke(MemorySegment funcPtr, MemorySegment buf, int size, int rwflag, MemorySegment userdata) {
try {
return (int) DOWN$MH.invokeExact(funcPtr, buf, size, rwflag, userdata);
} catch (Throwable ex$) {
throw new AssertionError("should not reach here", ex$);
}
}
}
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