src/core/lib/transport/bdp_estimator.h

/*
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#ifndef GRPC_CORE_LIB_TRANSPORT_BDP_ESTIMATOR_H
#define GRPC_CORE_LIB_TRANSPORT_BDP_ESTIMATOR_H

#include <stdbool.h>
#include <stdint.h>

#define GRPC_BDP_SAMPLES 16
#define GRPC_BDP_MIN_SAMPLES_FOR_ESTIMATE 3

typedef struct grpc_bdp_estimator {
  int64_t samples[GRPC_BDP_SAMPLES];
  uint8_t num_samples;
  uint8_t first_sample_idx;
  bool sampling;
} grpc_bdp_estimator;

void grpc_bdp_estimator_init(grpc_bdp_estimator *estimator);
void grpc_bdp_estimator_destroy(grpc_bdp_estimator *estimator);

// Returns true if a reasonable estimate could be obtained
bool grpc_bdp_estimator_get_estimate(grpc_bdp_estimator *estimator,
                                     int64_t *estimate);
// Returns true if the user should start a ping
bool grpc_bdp_estimator_add_incoming_bytes(grpc_bdp_estimator *estimator,
                                           int64_t num_bytes);
// Completes a previously started ping
void grpc_bdp_estimator_complete_ping(grpc_bdp_estimator *estimator);

#endif