| // Copyright 2020 The gVisor Authors. |
| // |
| // Licensed 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. |
| |
| // Package syncevent provides efficient primitives for goroutine |
| // synchronization based on event bitmasks. |
| package syncevent |
| |
| // Set is a bitmask where each bit represents a distinct user-defined event. |
| // The event package does not treat any bits in Set specially. |
| type Set uint64 |
| |
| const ( |
| // NoEvents is a Set containing no events. |
| NoEvents = Set(0) |
| |
| // AllEvents is a Set containing all possible events. |
| AllEvents = ^Set(0) |
| |
| // MaxEvents is the number of distinct events that can be represented by a Set. |
| MaxEvents = 64 |
| ) |
