Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(938)

Unified Diff: net/quic/quic_utils.cc

Issue 11125002: Add QuicFramer and friends. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: narrowing in Created 8 years, 2 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
Index: net/quic/quic_utils.cc
diff --git a/net/quic/quic_utils.cc b/net/quic/quic_utils.cc
new file mode 100644
index 0000000000000000000000000000000000000000..76d7cd0f79d0775c08f6d36c7a865e4e6cc42cf7
--- /dev/null
+++ b/net/quic/quic_utils.cc
@@ -0,0 +1,76 @@
+// 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"
+
+namespace net {
+
+// static
+int QuicUtils::StreamFragmentPacketOverhead(int num_fragments) {
+ return kPacketHeaderSize +
+ 1 + // fragment count
jar (doing other things) 2012/10/14 23:04:38 nit: much better would be some sizeof(names) here.
Ryan Hamilton 2012/10/15 21:22:08 added todo.
+ (1 + // 8 bit type
+ 2 + // 16 bit length
+ kMinStreamFragmentLength) * num_fragments;
+}
+
+// The following two constants are defined as part of the hash algorithm.
+// 309485009821345068724781371
+static uint128 kPrime(16777216, 315);
jar (doing other things) 2012/10/14 23:04:38 nit: I like statics... but I think we're supposed
Ryan Hamilton 2012/10/15 21:22:08 added todo.
+// 14406626329776981559649562966706236762
+static uint128 kOffset(780984778246553632, 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_FRAGMENT_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

Powered by Google App Engine
This is Rietveld 408576698