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Commite214cf6

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committed
Added logging library.
1 parentd224a03 commite214cf6

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3 files changed

+145
-0
lines changed

3 files changed

+145
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lines changed
Lines changed: 67 additions & 0 deletions
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#ifndef NETWORK_LOGGING_HPP_20121112
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#defineNETWORK_LOGGING_HPP_20121112
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#include<sstream>
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#include<functional>
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namespacenetwork {namespacelogging {
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classlog_record;
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//using log_record_handler = std::function< void (const std::string&) >; // use this when VS can compile it...
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typedef std::function<void (const log_record&) > log_record_handler;
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voidset_log_record_handler( log_record_handler handler );
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voidlog(const log_record& message );
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namespacehandler
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{
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log_record_handlerget_std_log_handler();
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log_record_handlerget_default_log_handler();
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}
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/** Helper to build a log record as a stream.*/
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classlog_record
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{
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public:
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log_record(){}// = default;
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// Implicit construction from string
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log_record(const std::string& message )
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{
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write( message );
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}
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~log_record()
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{
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log( *this );
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}
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template<typename TypeOfSomething >
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log_record&write(const TypeOfSomething& something )// THINK: use universal references?
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{
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m_text_stream << something;
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return *this;
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}
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std::stringfull_message()const {return m_text_stream.str(); }
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private:
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// disable copy
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log_record(const log_record& );// = delete;
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log_record&operator=(const log_record& );// = delete;
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std::ostringstream m_text_stream;// stream in which we build the message
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};
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template<typename TypeOfSomething >
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inline log_record&operator<<( log_record& log,const TypeOfSomething& something )// THINK: use universal references?
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{
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return log.write( something );
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}
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}}
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#endif/* end of include guard: NETWORK_LOGGING_HPP_20121112*/

‎libs/network/src/CMakeLists.txt‎

Lines changed: 26 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -20,6 +20,28 @@ if (${CMAKE_CXX_COMPILER_ID} MATCHES GNU)
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endif()
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endif()
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if( CPP-NETLIB_ALWAYS_LOGGING )
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add_definitions( /D NETWORK_ENABLE_LOGGING )
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endif()
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if(NOT CPP-NETLIB_DISABLE_LOGGING )
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set( CPP-NETLIB_LOGGING_SRCS
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logging/logging.cpp
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)
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add_library(cppnetlib-logging ${CPP-NETLIB_LOGGING_SRCS})
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foreach (src_file ${CPP-NETLIB_LOGGING_SRCS})
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if (${CMAKE_CXX_COMPILER_ID}MATCHES GNU)
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set_source_files_properties(${src_file}
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PROPERTIESCOMPILE_FLAGS ${CPP-NETLIB_CXXFLAGS})
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endif()
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endforeach(src_file)
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# this library name is defined only if we created the target
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# if not then it will be empty
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set( CPP-NETLIB_LOGGING_LIB cppnetlib-logging )
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endif()
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set(CPP-NETLIB_URI_SRCS uri/uri.cpp uri/schemes.cpp uri/normalize.cpp)
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add_library(cppnetlib-uri ${CPP-NETLIB_URI_SRCS})
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foreach (src_file ${CPP-NETLIB_URI_SRCS})
@@ -100,6 +122,7 @@ set(CPP-NETLIB_HTTP_SERVER_SRCS
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add_library(cppnetlib-http-server ${CPP-NETLIB_HTTP_SERVER_SRCS})
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add_dependencies(cppnetlib-http-server
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${Boost_LIBRARIES}
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${CPP-NETLIB_LOGGING_LIB}
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cppnetlib-constants
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cppnetlib-uri
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cppnetlib-message
@@ -111,6 +134,7 @@ add_dependencies(cppnetlib-http-server
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)
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target_link_libraries(cppnetlib-http-server
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${Boost_LIBRARIES}
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${CPP-NETLIB_LOGGING_LIB}
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cppnetlib-constants
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cppnetlib-uri
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cppnetlib-message
@@ -151,6 +175,7 @@ set(CPP-NETLIB_HTTP_CLIENT_SRCS
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add_library(cppnetlib-http-client ${CPP-NETLIB_HTTP_CLIENT_SRCS})
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add_dependencies(cppnetlib-http-client
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${Boost_LIBRARIES}
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${CPP-NETLIB_LOGGING_LIB}
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cppnetlib-constants
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cppnetlib-uri
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cppnetlib-message
@@ -162,6 +187,7 @@ add_dependencies(cppnetlib-http-client
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)
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target_link_libraries(cppnetlib-http-client
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${Boost_LIBRARIES}
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${CPP-NETLIB_LOGGING_LIB}
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cppnetlib-constants
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cppnetlib-uri
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cppnetlib-message
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#ifdef NETWORK_NO_LIB
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#undef NETWORK_NO_LIB
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#endif
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#include<iostream>
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#include<boost/thread/shared_mutex.hpp>
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#include<boost/thread/shared_lock_guard.hpp>
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#include<network/logging/logging.hpp>
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namespacenetwork {namespacelogging {
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namespacehandler
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{
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namespace
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{
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voidstd_log_handler(const log_record& log )
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{
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std::cerr << log.full_message() << std::endl;
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}
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}
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log_record_handlerget_std_log_handler() {return &std_log_handler; }
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log_record_handlerget_default_log_handler() {return &std_log_handler; }
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}
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namespace
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{
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// the log handler have to manage itself the thread safety on call
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log_record_handler current_log_record_handler = handler::std_log_handler;
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boost::upgrade_mutex mutex_log_handler;// we still need to not change the log handler concurrently
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}
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voidset_log_record_handler( log_record_handler handler )
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{
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boost::lock_guard<boost::upgrade_mutex>write_lock( mutex_log_handler );
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current_log_record_handler = handler;
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}
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voidlog(const log_record& log )
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{
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boost::shared_lock<boost::upgrade_mutex>read_lock( mutex_log_handler );
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if( current_log_record_handler )
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{
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current_log_record_handler( log );
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}
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}
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}}

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