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// Copyright (c) 2012 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.
#include "net/quic/quic_utils.h"
#include "base/logging.h"
#include "base/port.h"
namespace net {
// static
size_t QuicUtils::StreamFramePacketOverhead(int num_frames) {
// TODO(jar): Use sizeof(some name).
return kPacketHeaderSize +
1 + // frame count
(1 + // 8 bit type
2 + // 16 bit length
kMinStreamFrameLength) * num_frames;
}
// TODO(jar): put into an anonymous namespage.
// The following two constants are defined as part of the hash algorithm.
// 309485009821345068724781371
static uint128 kPrime(16777216, 315);
// 14406626329776981559649562966706236762
static uint128 kOffset(GG_UINT64_C(780984778246553632),
GG_UINT64_C(4400696054689967450));
uint128 QuicUtils::FNV1a_128_Hash(const char* data, int len) {
const uint8* octets = reinterpret_cast<const uint8*>(data);
uint128 hash = kOffset;
for (int i = 0; i < len; ++i) {
hash = hash ^ uint128(0, octets[i]);
hash = hash * kPrime;
}
return hash;
}
#define RETURN_STRING_LITERAL(x) \
case x: \
return #x;
const char* QuicUtils::ErrorToString(QuicErrorCode error) {
switch (error) {
RETURN_STRING_LITERAL(QUIC_NO_ERROR);
RETURN_STRING_LITERAL(QUIC_STREAM_DATA_AFTER_TERMINATION);
RETURN_STRING_LITERAL(QUIC_SERVER_ERROR_PROCESSING_STREAM);
RETURN_STRING_LITERAL(QUIC_MULTIPLE_TERMINATION_OFFSETS);
RETURN_STRING_LITERAL(QUIC_BAD_APPLICATION_PAYLOAD);
RETURN_STRING_LITERAL(QUIC_INVALID_PACKET_HEADER);
RETURN_STRING_LITERAL(QUIC_INVALID_FRAME_DATA);
RETURN_STRING_LITERAL(QUIC_INVALID_FEC_DATA);
RETURN_STRING_LITERAL(QUIC_INVALID_RST_STREAM_DATA);
RETURN_STRING_LITERAL(QUIC_INVALID_CONNECTION_CLOSE_DATA);
RETURN_STRING_LITERAL(QUIC_INVALID_ACK_DATA);
RETURN_STRING_LITERAL(QUIC_DECRYPTION_FAILURE);
RETURN_STRING_LITERAL(QUIC_ENCRYPTION_FAILURE);
RETURN_STRING_LITERAL(QUIC_PACKET_TOO_LARGE);
RETURN_STRING_LITERAL(QUIC_PACKET_FOR_NONEXISTENT_STREAM);
RETURN_STRING_LITERAL(QUIC_CLIENT_GOING_AWAY);
RETURN_STRING_LITERAL(QUIC_SERVER_GOING_AWAY);
RETURN_STRING_LITERAL(QUIC_CRYPTO_TAGS_OUT_OF_ORDER);
RETURN_STRING_LITERAL(QUIC_CRYPTO_TOO_MANY_ENTRIES);
RETURN_STRING_LITERAL(QUIC_CRYPTO_INVALID_VALUE_LENGTH)
RETURN_STRING_LITERAL(QUIC_CRYPTO_MESSAGE_AFTER_HANDSHAKE_COMPLETE);
RETURN_STRING_LITERAL(QUIC_INVALID_CRYPTO_MESSAGE_TYPE);
RETURN_STRING_LITERAL(QUIC_INVALID_STREAM_ID);
RETURN_STRING_LITERAL(QUIC_TOO_MANY_OPEN_STREAMS);
RETURN_STRING_LITERAL(QUIC_CONNECTION_TIMED_OUT);
// Intentionally have no default case, so we'll break the build
// if we add errors and don't put them here.
}
return "";
}
} // namespace net
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