| // 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 COMPONENTS_CAST_CHANNEL_LOGGER_H_ |
| #define COMPONENTS_CAST_CHANNEL_LOGGER_H_ |
| |
| #include <stddef.h> |
| |
| #include <map> |
| #include <memory> |
| #include <string> |
| |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "base/threading/thread_checker.h" |
| #include "components/cast_channel/cast_channel_enum.h" |
| |
| namespace cast_channel { |
| |
| struct AuthResult; |
| |
| // Holds the most recent error encountered by a CastSocket. |
| struct LastError { |
| public: |
| LastError(); |
| ~LastError(); |
| |
| // The most recent event that occurred at the time of the error. |
| ChannelEvent channel_event; |
| |
| // The most recent ChallengeReplyError logged for the socket. |
| // NOTE(mfoltz): AuthResult::ErrorType is zero-indexed and ChallengeReplyError |
| // is one-indexed, so we can't use AuthResult::ErrorType here. |
| ChallengeReplyError challenge_reply_error; |
| |
| // The most recent net_return_value logged for the socket. |
| int net_return_value; |
| }; |
| |
| // Called with events that occur on a Cast Channel and remembers any that |
| // warrant reporting to the caller in LastError. |
| class Logger : public base::RefCountedThreadSafe<Logger> { |
| public: |
| Logger(); |
| |
| // For events that involves socket / crypto operations that returns a value. |
| void LogSocketEventWithRv(int channel_id, ChannelEvent channel_event, int rv); |
| |
| // For AUTH_CHALLENGE_REPLY event. |
| void LogSocketChallengeReplyEvent(int channel_id, |
| const AuthResult& auth_result); |
| |
| // Returns the last errors logged for |channel_id|. |
| LastError GetLastError(int channel_id) const; |
| |
| // Removes a LastError entry for |channel_id| if one exists. |
| void ClearLastError(int channel_id); |
| |
| private: |
| friend class base::RefCountedThreadSafe<Logger>; |
| ~Logger(); |
| |
| // Propagate any error values in |rv| or |challenge_reply_error| to the |
| // LastError for |channel_id|. |
| void MaybeSetLastError(int channel_id, |
| ChannelEvent channel_event, |
| int rv, |
| ChallengeReplyError challenge_reply_error); |
| |
| // Maps channel_id to the LastError for the channel. |
| std::map<int, LastError> last_errors_; |
| |
| THREAD_CHECKER(thread_checker_); |
| |
| DISALLOW_COPY_AND_ASSIGN(Logger); |
| }; |
| } // namespace cast_channel |
| |
| #endif // COMPONENTS_CAST_CHANNEL_LOGGER_H_ |