mirror of https://github.com/casbin/casnode.git
65 lines
1.6 KiB
Go
65 lines
1.6 KiB
Go
// Copyright 2021 The casbin Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package discuzx
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import (
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"fmt"
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"sync"
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)
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var randomAvatarCount = 244
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var (
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randomAvatarMap map[string][]byte
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randomAvatarMapMutex sync.RWMutex
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)
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func initRandomAvatars() {
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randomAvatarMap = map[string][]byte{}
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randomAvatarMapMutex = sync.RWMutex{}
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var wg sync.WaitGroup
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wg.Add(randomAvatarCount)
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sem := make(chan int, 100)
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for i := 1; i <= randomAvatarCount; i++ {
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sem <- 1
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go func(i int) {
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defer wg.Done()
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avatarUrl := fmt.Sprintf("%s%d.png", avatarPoolBaseUrl, i)
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fileBytes, _, err := downloadFile(avatarUrl)
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if err != nil {
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panic(err)
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}
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randomAvatarMapMutex.Lock()
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randomAvatarMap[avatarUrl] = fileBytes
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randomAvatarMapMutex.Unlock()
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fmt.Printf("[%d/%d]: Initialized random avatar: %s\n", i, randomAvatarCount, avatarUrl)
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<-sem
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}(i)
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}
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wg.Wait()
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}
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func getRandomAvatar(avatarUrl string) []byte {
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fileBytes, ok := randomAvatarMap[avatarUrl]
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if !ok {
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panic(fmt.Sprintf("getRandomAvatar() error, key not found: %s", avatarUrl))
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}
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return fileBytes
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}
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