429247f407
* [COMPLIANCE] Update Copyright and License Headers * chore: make gen to generate files with copyright headers * chore: update missed copyright headers --------- Co-authored-by: hashicorp-copywrite[bot] <110428419+hashicorp-copywrite[bot]@users.noreply.github.com> Co-authored-by: Justin Nguyen <justin.nguyen@hashicorp.com>
43 lines
1.2 KiB
Go
43 lines
1.2 KiB
Go
// Copyright IBM Corp. 2020, 2025
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// SPDX-License-Identifier: BUSL-1.1
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package proxy
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import (
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"net/http"
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"sync/atomic"
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)
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// ProxyState contains the current state of proxies in this process.
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var ProxyState proxyState = proxyState{proxyCount: new(atomic.Int64)}
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type proxyState struct {
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proxyCount *atomic.Int64
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}
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// CurrentProxiedConnections returns the current number of ongoing proxied
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// connections which are currently running the Handler's ProxyConnFn.
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func (p *proxyState) CurrentProxiedConnections() int64 {
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return p.proxyCount.Load()
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}
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// HttpHandlerCounter records how many requests are currently running in the
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// wrapped Handler. This should be used for handlers that serve proxied traffic.
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func ProxyHandlerCounter(h http.Handler) http.Handler {
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return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
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ProxyState.proxyCount.Add(1)
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defer ProxyState.proxyCount.Add(-1)
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h.ServeHTTP(rw, r)
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})
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}
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// proxyConnFnCounter wraps a ProxyState and keeps the proxyCount incremented
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// while it runs.
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func proxyConnFnCounter(fn ProxyConnFn) ProxyConnFn {
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return func() {
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ProxyState.proxyCount.Add(1)
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defer ProxyState.proxyCount.Add(-1)
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fn()
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}
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}
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