53 lines
1.5 KiB
C
Executable File
53 lines
1.5 KiB
C
Executable File
/*
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* Copyright (c) 2020 Huawei Device Co., Ltd.
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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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*/
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#ifndef LITE_TOKEN_BUCKET_H
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#define LITE_TOKEN_BUCKET_H
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#include <ohos_types.h>
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#ifdef __cplusplus
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#if __cplusplus
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extern "C" {
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#endif
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#endif
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#define TOKEN_PRE_MSG 1000
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typedef struct TokenBucket TokenBucket;
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struct TokenBucket {
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int rate; // The rate of token generation per millisecond. Now, we use the TPS instead.
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int burst; // The burst size of the token bucket
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uint64 last; // The time of the last message
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int used; // The used buckets. When the rate is TPS, the value is used * TOKEN_PRE_MSG.
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};
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typedef enum BucketStatus {
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BUCKET_BUSY,
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BUCKET_IDLE,
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BUCKET_INVALID,
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} BucketStatus;
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inline static void TB_InitBucket(TokenBucket *bucket, int rate, int burst)
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{
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bucket->last = 0;
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bucket->rate = rate;
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bucket->burst = burst;
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bucket->used = 0;
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}
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int TB_CheckMessage(TokenBucket *bucket);
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#ifdef __cplusplus
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#if __cplusplus
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}
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#endif
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#endif
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#endif // LITE_TOKEN_BUCKET_H
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