/**
 * 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.
 */
#ifndef WTF_OSRandomSource_h
#define WTF_OSRandomSource_h

namespace WTF {

// This function attempts to fill buffer with randomness from the operating
// system.  If insufficient randomness is available, the buffer will be
// partially filled.  Rather than calling this function directly, consider
// calling cryptographicallyRandomNumber or cryptographicallyRandomValues.
void cryptographicallyRandomValuesFromOS(unsigned char* buffer, size_t length);
}

#endif