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56 lines
1.5 KiB
56 lines
1.5 KiB
3 years ago
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/**
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* Copyright 2019 Confluent Inc.
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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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package kafka
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import "C"
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import (
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"context"
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"time"
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)
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const (
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cTimeoutInfinite = C.int(-1) // Blocks indefinitely until completion.
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cTimeoutNoWait = C.int(0) // Returns immediately without blocking.
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)
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// cTimeoutFromContext returns the remaining time after which work done on behalf of this context
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// should be canceled, in milliseconds.
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//
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// If no deadline/timeout is set, or if the timeout does not fit in an int32, it returns
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// cTimeoutInfinite;
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// If there is no time left in this context, it returns cTimeoutNoWait.
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func cTimeoutFromContext(ctx context.Context) C.int {
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if ctx == nil {
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return cTimeoutInfinite
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}
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timeout, hasTimeout := timeout(ctx)
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if !hasTimeout {
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return cTimeoutInfinite
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}
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if timeout <= 0 {
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return cTimeoutNoWait
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}
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timeoutMs := int64(timeout / time.Millisecond)
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if int64(int32(timeoutMs)) < timeoutMs {
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return cTimeoutInfinite
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}
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return C.int(timeoutMs)
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}
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