From d18ae43123fcd7604d1c36a1ec8450dbe6071824 Mon Sep 17 00:00:00 2001 From: Luca Muscariello Date: Thu, 23 Feb 2017 20:44:26 +0100 Subject: Initial commit: ccnxlibs. Change-Id: I1b376527a7dd01a6b9e083a6cb646955902f45c0 Signed-off-by: Luca Muscariello --- .../ccnx/transport/transport_rta/core/rta_Logger.h | 227 +++++++++++++++++++++ 1 file changed, 227 insertions(+) create mode 100644 libccnx-transport-rta/ccnx/transport/transport_rta/core/rta_Logger.h (limited to 'libccnx-transport-rta/ccnx/transport/transport_rta/core/rta_Logger.h') diff --git a/libccnx-transport-rta/ccnx/transport/transport_rta/core/rta_Logger.h b/libccnx-transport-rta/ccnx/transport/transport_rta/core/rta_Logger.h new file mode 100644 index 00000000..067ad4f1 --- /dev/null +++ b/libccnx-transport-rta/ccnx/transport/transport_rta/core/rta_Logger.h @@ -0,0 +1,227 @@ +/* + * Copyright (c) 2017 Cisco and/or its affiliates. + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at: + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/** + * @file rta_Logger.h + * @brief Logger for the Rta transport + * + * A facility based logger to allow selective logging from different parts of Rta + * + */ + +#ifndef Rta_rta_Logger_h +#define Rta_rta_Logger_h + +#include +#include +#include +#include +#include +#include + +struct rta_logger; +typedef struct rta_logger RtaLogger; + +/** + * Framework - Overall framework + * ApiConnector - API Connector + * Flowcontrol - Flow controller + * Codec - Codec and verification/signing + * ForwarderConnector - Forwarder connector + */ +typedef enum { + RtaLoggerFacility_Framework, + RtaLoggerFacility_ApiConnector, + RtaLoggerFacility_Flowcontrol, + RtaLoggerFacility_Codec, + RtaLoggerFacility_ForwarderConnector, + RtaLoggerFacility_END // sentinel value +} RtaLoggerFacility; + +/** + * Returns a string representation of a facility + * + * Do not free the returned value. + * + * @param [in] facility The facility to change to a string + * + * @retval string A string representation of the facility + * + * Example: + * @code + * <#example#> + * @endcode + */ +const char *rtaLogger_FacilityString(RtaLoggerFacility facility); + +/** + * Returns a string representation of a log level + * + * Do not free the returned value. + * + * @param [in] level The level to change to a string + * + * @retval string A string representation of the level + * + * Example: + * @code + * <#example#> + * @endcode + */ +const char *rtaLogger_LevelString(PARCLogLevel level); + +/** + * Create a logger that uses a given writer and clock + * + * <#Paragraphs Of Explanation#> + * + * @param [in] writer The output writer + * @param [in] clock The clock to use for log messages + * + * @retval non-null An allocated logger + * @retval null An error + * + * Example: + * @code + * <#example#> + * @endcode + */ +RtaLogger *rtaLogger_Create(PARCLogReporter *reporter, const PARCClock *clock); + +/** + * <#One Line Description#> + * + * <#Paragraphs Of Explanation#> + * + * @param [<#in out in,out#>] <#name#> <#description#> + * + * @retval <#value#> <#explanation#> + * + * Example: + * @code + * <#example#> + * @endcode + */ +void rtaLogger_Release(RtaLogger **loggerPtr); + +/** + * <#One Line Description#> + * + * <#Paragraphs Of Explanation#> + * + * @param [<#in out in,out#>] <#name#> <#description#> + * + * @retval <#value#> <#explanation#> + * + * Example: + * @code + * <#example#> + * @endcode + */ +RtaLogger *rtaLogger_Acquire(const RtaLogger *logger); + +/** + * Sets the minimum log level for a facility + * + * The default log level is ERROR. For a message to be logged, it must be of equal + * or higher log level. + * + * @param [in] logger An allocated logger + * @param [in] facility The facility to set the log level for + * @param [in] The minimum level to log + * + * @retval <#value#> <#explanation#> + * + * Example: + * @code + * { + * PARCLogReporter *reporter = parcLogReporterTextStdout_Create(); + * RtaLogger *logger = rtaLogger_Create(reporter, parcClock_Wallclock()); + * parcLogReporter_Release(&reporter); + * rtaLogger_SetLogLevel(logger, RtaLoggerFacility_IO, PARCLogLevel_Warning); + * } + * @endcode + */ +void rtaLogger_SetLogLevel(RtaLogger *logger, RtaLoggerFacility facility, PARCLogLevel minimumLevel); + +/** + * Tests if the log level would be logged + * + * If the facility would log the given level, returns true. May be used as a + * guard around expensive logging functions. + * + * @param [in] logger An allocated logger + * @param [in] facility The facility to test + * @param [in] The level to test + * + * @retval true The given facility would log the given level + * @retval false A message of the given level would not be logged + * + * Example: + * @code + * <#example#> + * @endcode + */ +bool rtaLogger_IsLoggable(const RtaLogger *logger, RtaLoggerFacility facility, PARCLogLevel level); + +/** + * Log a message + * + * The message will only be logged if it is loggable (rtaLogger_IsLoggable returns true). + * + * @param [in] logger An allocated RtaLogger + * @param [in] facility The facility to log under + * @param [in] level The log level of the message + * @param [in] module The specific module logging the message + * @param [in] format The message with varargs + * + * Example: + * @code + * <#example#> + * @endcode + */ +void rtaLogger_Log(RtaLogger *logger, RtaLoggerFacility facility, PARCLogLevel level, const char *module, const char *format, ...); + +/** + * Switch the logger to a new reporter + * + * Will close the old reporter and re-setup the internal loggers to use the new reporter. + * All current log level settings are preserved. + * + * @param [in] logger An allocated RtaLogger + * @param [in] reporter An allocated PARCLogReporter + * + * Example: + * @code + * <#example#> + * @endcode + */ +void rtaLogger_SetReporter(RtaLogger *logger, PARCLogReporter *reporter); + +/** + * Set a new clock to use with the logger + * + * The logger will start getting the time (logged as the messageid) from the specified clock + * + * @param [in] logger An allocated RtaLogger + * @param [in] clock An allocated PARCClock + * + * Example: + * @code + * <#example#> + * @endcode + */ +void rtaLogger_SetClock(RtaLogger *logger, PARCClock *clock); +#endif // Rta_rta_Logger_h -- cgit 1.2.3-korg