| // Copyright (C) 2015 The Android Open Source Project |
| // |
| // 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 multiplexer |
| |
| import ( |
| "sync/atomic" |
| |
| "android.googlesource.com/platform/tools/gpu/binary" |
| ) |
| |
| type channelId uint32 |
| |
| func remote(i channelId) channelId { |
| return ^i |
| } |
| |
| func (i *channelId) increment() (old channelId) { |
| return channelId(atomic.AddUint32((*uint32)(i), 1) - 1) |
| } |
| |
| func (i channelId) encode(e binary.Encoder) error { |
| return e.Uint32(uint32(i)) |
| } |
| |
| func (i *channelId) decode(d binary.Decoder) error { |
| if val, err := d.Uint32(); err == nil { |
| *i = channelId(val) |
| return nil |
| } else { |
| return err |
| } |
| } |
