github.com/andy-kimball/arenaskl@v0.0.0-20200617143215-f701008588b9/internal/fastrand/fastrand.go (about)

     1  /*
     2   * Copyright 2017 Dgraph Labs, Inc. and Contributors
     3   * Modifications copyright (C) 2020 Andy Kimball and Contributors
     4   *
     5   * Licensed under the Apache License, Version 2.0 (the "License");
     6   * you may not use this file except in compliance with the License.
     7   * You may obtain a copy of the License at
     8   *
     9   *     http://www.apache.org/licenses/LICENSE-2.0
    10   *
    11   * Unless required by applicable law or agreed to in writing, software
    12   * distributed under the License is distributed on an "AS IS" BASIS,
    13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    14   * See the License for the specific language governing permissions and
    15   * limitations under the License.
    16   */
    17  
    18  package fastrand
    19  
    20  import _ "unsafe" // required by go:linkname
    21  
    22  // Uint32 returns a lock free uint32 value.
    23  //go:linkname Uint32 runtime.fastrand
    24  func Uint32() uint32