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#include "source/common/http/async_client_utility.h"
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#include "source/common/common/assert.h"

            

        

            

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namespace Envoy {

            

        

            

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namespace Http {

            

        

            

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AsyncClientRequestTracker::~AsyncClientRequestTracker() {

            

        

            

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  for (auto* active_request : active_requests_) {

            

        

            

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    active_request->cancel();

            

        

            

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  }

            

        

            

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}

            

        

            

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void AsyncClientRequestTracker::add(AsyncClient::Request& request) {

            

        

            

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  ASSERT(active_requests_.find(&request) == active_requests_.end(), "request is already tracked.");

            

        

            

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  active_requests_.insert(&request);

            

        

            

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}

            

        

            

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void AsyncClientRequestTracker::remove(const AsyncClient::Request& request) {

            

        

            

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  // Notice that use of "const_cast" here is motivated by keeping API convenient for client code.

            

        

            

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  // In the context where remove() will be typically called, request.cancel() is no longer

            

        

            

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  // desirable and therefore get prevented by means of "const" modifier.

            

        

            

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  auto it = active_requests_.find(const_cast<AsyncClient::Request*>(&request));

            

        

            

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  // Support a use case where request callbacks might get called prior to a request handle

            

        

            

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  // is returned from AsyncClient::send().

            

        

            

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  if (it != active_requests_.end()) {

            

        

            

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    active_requests_.erase(it);

            

        

            

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  }

            

        

            

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}

            

        

            

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} // namespace Http

            

        

            

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} // namespace Envoy