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56 lines
2 KiB
Go
56 lines
2 KiB
Go
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/*
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*
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* Copyright 2018 gRPC authors.
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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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*
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*/
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package transport
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import (
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"math"
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"time"
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)
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const (
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// The default value of flow control window size in HTTP2 spec.
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defaultWindowSize = 65535
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// The initial window size for flow control.
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initialWindowSize = defaultWindowSize // for an RPC
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infinity = time.Duration(math.MaxInt64)
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defaultClientKeepaliveTime = infinity
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defaultClientKeepaliveTimeout = 20 * time.Second
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defaultMaxStreamsClient = 100
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defaultMaxConnectionIdle = infinity
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defaultMaxConnectionAge = infinity
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defaultMaxConnectionAgeGrace = infinity
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defaultServerKeepaliveTime = 2 * time.Hour
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defaultServerKeepaliveTimeout = 20 * time.Second
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defaultKeepalivePolicyMinTime = 5 * time.Minute
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// max window limit set by HTTP2 Specs.
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maxWindowSize = math.MaxInt32
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// defaultWriteQuota is the default value for number of data
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// bytes that each stream can schedule before some of it being
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// flushed out.
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defaultWriteQuota = 64 * 1024
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defaultClientMaxHeaderListSize = uint32(16 << 20)
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defaultServerMaxHeaderListSize = uint32(16 << 20)
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)
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// MaxStreamID is the upper bound for the stream ID before the current
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// transport gracefully closes and new transport is created for subsequent RPCs.
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// This is set to 75% of 2^31-1. Streams are identified with an unsigned 31-bit
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// integer. It's exported so that tests can override it.
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var MaxStreamID = uint32(math.MaxInt32 * 3 / 4)
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