Index: mojo/edk/system/channel_endpoint_id.h |
diff --git a/mojo/edk/system/channel_endpoint_id.h b/mojo/edk/system/channel_endpoint_id.h |
deleted file mode 100644 |
index c67325878c6fbe3c69f0b1b8a600216ff3309064..0000000000000000000000000000000000000000 |
--- a/mojo/edk/system/channel_endpoint_id.h |
+++ /dev/null |
@@ -1,147 +0,0 @@ |
-// Copyright 2014 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 MOJO_EDK_SYSTEM_CHANNEL_ENDPOINT_ID_H_ |
-#define MOJO_EDK_SYSTEM_CHANNEL_ENDPOINT_ID_H_ |
- |
-#include <stddef.h> |
-#include <stdint.h> |
- |
-#include <ostream> |
- |
-#include "base/containers/hash_tables.h" |
-#include "base/gtest_prod_util.h" |
-#include "base/macros.h" |
-#include "mojo/edk/system/system_impl_export.h" |
- |
-namespace mojo { |
-namespace system { |
- |
-// ChannelEndpointId ----------------------------------------------------------- |
- |
-class LocalChannelEndpointIdGenerator; |
-FORWARD_DECLARE_TEST(LocalChannelEndpointIdGeneratorTest, WrapAround); |
-FORWARD_DECLARE_TEST(RemoteChannelEndpointIdGeneratorTest, WrapAround); |
- |
-// Represents an ID for an endpoint (i.e., one side of a message pipe) on a |
-// |Channel|. This class must be POD. |
-// |
-// Note: The terminology "remote" for a |ChannelEndpointId| means a destination |
-// ID that was actually allocated by the sender, or similarly a source ID that |
-// was allocated by the receiver. |
-// |
-// From the standpoint of the |Channel| with such a remote ID in its endpoint |
-// table, such an ID is a "remotely-allocated local ID". From the standpoint of |
-// the |Channel| allocating such a remote ID (for its peer |Channel|), it's a |
-// "locally-allocated remote ID". |
-class MOJO_SYSTEM_IMPL_EXPORT ChannelEndpointId { |
- public: |
- ChannelEndpointId() : value_(0) {} |
- ChannelEndpointId(const ChannelEndpointId& other) : value_(other.value_) {} |
- |
- // Returns the local ID to use for the first message pipe endpoint on a |
- // channel. |
- static ChannelEndpointId GetBootstrap() { return ChannelEndpointId(1); } |
- |
- bool operator==(const ChannelEndpointId& other) const { |
- return value_ == other.value_; |
- } |
- bool operator!=(const ChannelEndpointId& other) const { |
- return !operator==(other); |
- } |
- // So that we can be used in |std::map|, etc. |
- bool operator<(const ChannelEndpointId& other) const { |
- return value_ < other.value_; |
- } |
- |
- bool is_valid() const { return !!value_; } |
- bool is_remote() const { return !!(value_ & kRemoteFlag); } |
- const uint32_t& value() const { return value_; } |
- |
- // Flag set in |value()| if this is a remote ID. |
- static const uint32_t kRemoteFlag = 0x80000000u; |
- |
- private: |
- friend class LocalChannelEndpointIdGenerator; |
- FRIEND_TEST_ALL_PREFIXES(LocalChannelEndpointIdGeneratorTest, WrapAround); |
- friend class RemoteChannelEndpointIdGenerator; |
- FRIEND_TEST_ALL_PREFIXES(RemoteChannelEndpointIdGeneratorTest, WrapAround); |
- |
- explicit ChannelEndpointId(uint32_t value) : value_(value) {} |
- |
- uint32_t value_; |
- |
- // Copying and assignment allowed. |
-}; |
-// This wrapper should add no overhead. |
-// TODO(vtl): Rewrite |sizeof(uint32_t)| as |sizeof(ChannelEndpointId::value)| |
-// once we have sufficient C++11 support. |
-static_assert(sizeof(ChannelEndpointId) == sizeof(uint32_t), |
- "ChannelEndpointId has incorrect size"); |
- |
-// So logging macros and |DCHECK_EQ()|, etc. work. |
-inline std::ostream& operator<<(std::ostream& out, |
- const ChannelEndpointId& channel_endpoint_id) { |
- return out << channel_endpoint_id.value(); |
-} |
- |
-// LocalChannelEndpointIdGenerator --------------------------------------------- |
- |
-// A generator for "new" local |ChannelEndpointId|s. It does not track |
-// used/existing IDs; that must be done separately. (This class is not |
-// thread-safe.) |
-class MOJO_SYSTEM_IMPL_EXPORT LocalChannelEndpointIdGenerator { |
- public: |
- LocalChannelEndpointIdGenerator() |
- : next_(ChannelEndpointId::GetBootstrap()) {} |
- |
- ChannelEndpointId GetNext(); |
- |
- private: |
- FRIEND_TEST_ALL_PREFIXES(LocalChannelEndpointIdGeneratorTest, WrapAround); |
- |
- ChannelEndpointId next_; |
- |
- DISALLOW_COPY_AND_ASSIGN(LocalChannelEndpointIdGenerator); |
-}; |
- |
-// RemoteChannelEndpointIdGenerator -------------------------------------------- |
- |
-// A generator for "new" remote |ChannelEndpointId|s, for |Channel|s to |
-// locally allocate remote IDs. (See the comment above |ChannelEndpointId| for |
-// an explanatory note.) It does not track used/existing IDs; that must be done |
-// separately. (This class is not thread-safe.) |
-class MOJO_SYSTEM_IMPL_EXPORT RemoteChannelEndpointIdGenerator { |
- public: |
- RemoteChannelEndpointIdGenerator() : next_(ChannelEndpointId::kRemoteFlag) {} |
- |
- ChannelEndpointId GetNext(); |
- |
- private: |
- FRIEND_TEST_ALL_PREFIXES(RemoteChannelEndpointIdGeneratorTest, WrapAround); |
- |
- ChannelEndpointId next_; |
- |
- DISALLOW_COPY_AND_ASSIGN(RemoteChannelEndpointIdGenerator); |
-}; |
- |
-} // namespace system |
-} // namespace mojo |
- |
-// Define "hash" functions for |ChannelEndpointId|s, so they can be used in hash |
-// tables. |
-// TODO(vtl): Once we can use |std::unordered_{map,set}|, update this (and |
-// remove the base/containers/hash_tables.h include). |
-namespace BASE_HASH_NAMESPACE { |
- |
-template <> |
-struct hash<mojo::system::ChannelEndpointId> { |
- size_t operator()(mojo::system::ChannelEndpointId channel_endpoint_id) const { |
- return static_cast<size_t>(channel_endpoint_id.value()); |
- } |
-}; |
- |
-} // namespace BASE_HASH_NAMESPACE |
- |
-#endif // MOJO_EDK_SYSTEM_CHANNEL_ENDPOINT_ID_H_ |