mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-11-24 14:26:09 +03:00
86 lines
3.5 KiB
C++
86 lines
3.5 KiB
C++
// Copyright 2016 The Chromium Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#ifndef NET_NQE_NETWORK_QUALITY_OBSERVATION_SOURCE_H_
|
|
#define NET_NQE_NETWORK_QUALITY_OBSERVATION_SOURCE_H_
|
|
|
|
namespace net {
|
|
|
|
// On Android, a Java counterpart will be generated for this enum.
|
|
// GENERATED_JAVA_ENUM_PACKAGE: org.chromium.net
|
|
// GENERATED_JAVA_CLASS_NAME_OVERRIDE: NetworkQualityObservationSource
|
|
// GENERATED_JAVA_PREFIX_TO_STRIP: NETWORK_QUALITY_OBSERVATION_SOURCE_
|
|
enum NetworkQualityObservationSource {
|
|
// The observation was taken at the request layer, e.g., a round trip time
|
|
// is recorded as the time between the request being sent and the first byte
|
|
// being received.
|
|
NETWORK_QUALITY_OBSERVATION_SOURCE_HTTP = 0,
|
|
|
|
// The observation is taken from TCP statistics maintained by the kernel.
|
|
NETWORK_QUALITY_OBSERVATION_SOURCE_TCP = 1,
|
|
|
|
// The observation is taken at the QUIC layer.
|
|
NETWORK_QUALITY_OBSERVATION_SOURCE_QUIC = 2,
|
|
|
|
// The observation is a previously cached estimate of the metric. The metric
|
|
// was computed at the HTTP layer.
|
|
NETWORK_QUALITY_OBSERVATION_SOURCE_HTTP_CACHED_ESTIMATE = 3,
|
|
|
|
// The observation is derived from network connection information provided
|
|
// by the platform. For example, typical RTT and throughput values are used
|
|
// for a given type of network connection. The metric was provided for use
|
|
// at the HTTP layer.
|
|
NETWORK_QUALITY_OBSERVATION_SOURCE_DEFAULT_HTTP_FROM_PLATFORM = 4,
|
|
|
|
// The observation came from a Chromium-external source. The metric was
|
|
// computed by the external source at the HTTP layer.
|
|
// Deprecated since external estimate provider is not currently queried.
|
|
DEPRECATED_NETWORK_QUALITY_OBSERVATION_SOURCE_HTTP_EXTERNAL_ESTIMATE = 5,
|
|
|
|
// The observation is a previously cached estimate of the metric. The metric
|
|
// was computed at the transport layer.
|
|
NETWORK_QUALITY_OBSERVATION_SOURCE_TRANSPORT_CACHED_ESTIMATE = 6,
|
|
|
|
// The observation is derived from the network connection information provided
|
|
// by the platform. For example, typical RTT and throughput values are used
|
|
// for a given type of network connection. The metric was provided for use
|
|
// at the transport layer.
|
|
NETWORK_QUALITY_OBSERVATION_SOURCE_DEFAULT_TRANSPORT_FROM_PLATFORM = 7,
|
|
|
|
NETWORK_QUALITY_OBSERVATION_SOURCE_MAX,
|
|
};
|
|
|
|
namespace nqe {
|
|
|
|
namespace internal {
|
|
// Returns the string equivalent of |source|.
|
|
const char* GetNameForObservationSource(NetworkQualityObservationSource source);
|
|
|
|
// Different categories to which an observation source can belong to. Each
|
|
// observation source belongs to exactly one category.
|
|
enum ObservationCategory {
|
|
// HTTP RTT observations measure the RTT from this device taken at the
|
|
// HTTP layer. If a HTTP-layer proxy is in use, then the RTT observations
|
|
// would measure the RTT from this device to the proxy.
|
|
OBSERVATION_CATEGORY_HTTP = 0,
|
|
// Transport RTT observations measure the RTT from this device taken at the
|
|
// transport layer. If a transport-layer proxy (e.g., TCP proxy) is in use,
|
|
// then the RTT observations would measure the RTT from this device to the
|
|
// proxy.
|
|
OBSERVATION_CATEGORY_TRANSPORT = 1,
|
|
// End to end RTT observations measure the RTT from this device to the remote
|
|
// web server. Currently, this only includes RTT observations taken from the
|
|
// QUIC connections.
|
|
OBSERVATION_CATEGORY_END_TO_END = 2,
|
|
OBSERVATION_CATEGORY_COUNT = 3
|
|
};
|
|
|
|
} // namespace internal
|
|
|
|
} // namespace nqe
|
|
|
|
} // namespace net
|
|
|
|
#endif // NET_NQE_NETWORK_QUALITY_OBSERVATION_SOURCE_H_
|