Makefile
The Makefile is provided with the module generated from getTemplateForDirectory. In the case of C++ server implementation, you need to configure the compilation and installation of a C++ library (Shared Object) file:
| Code Block |
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LIBRARIES:=<LibraryName>
<LibraryName>_OBJECTS = <ListOfObjectsToInclude> #.c and/or .cpp files
<LibraryName>_LIBS = <ListOfLibraryDependencies> #<Interface>Stubs acscomponent ServiceErr <Interface>Err #etc. |
Implementation
The first thing needed to implement a server, is to add the required include files:
| Code Block |
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| language | cpp |
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| title | C++ Imports |
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#ifndef _<FILENAME>_H
#define _<FILENAME>_H
#ifndef __cplusplus
#error This is a C++ include file and cannot be used from plain C
#endif
//Base component implementation, including container services and component lifecycle infrastructure
#include <acscomponentImpl.h>
//Skeleton interface for server implementation
#include <<Interface>S.h>
//Error definitions for catching and raising exceptions
#include <ServiceErr.h>
#include <<Interface>Err.h>
...
#endif |
...
For logging in C++, there are some macros to help:
| Code Block |
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| language | javacpp |
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| title | Java C++ Logger |
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|
ACS_TRACE("...");
ACS_DEBUG("...");
ACS_SHORT_LOG((LM_INFO, "..."));
ACS_SHORT_LOG((LM_WARNING, "..."));
ACS_SHORT_LOG((LM_ERROR, "...")); |
For catching and raising exceptions:
| Code Block |
|---|
| language | javacpp |
|---|
| title | Java C++ Error Handling |
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|
//Shared
#include <<Interface>Err.h>
//For catching exceptions
//Along CORBA calls
catch(<Interface>Err::<ExceptionName>Ex &_ex) { ... }
//Internally in the server... more convenient to edit parameters or log if needed
catch(<Interface>Err::<ExceptionName>ExImpl &_ex) { ... }
//For raising exceptions
//Along CORBA calls
throw <Interface>Err::<ExceptionName>ExImpl(__FILE__, __LINE__, "<CustomMessage>").get<ExceptionName>Ex();
//Internally in the server...
throw <Interface>Err::<ExceptionNanem>ExImpl(__FILE__, __LINE__, "<CustomMessage>");
//For raising exceptions with parameters
<Interface>Err::<ExceptionName>ExImpl err(__FILE__, __LINE__, "<CustomMessage>");
err.set<ParamName>(<Value>);
throw err.get<ExceptionName>Ex();
//For logging an error message from the exceptions
<Interface>Err::<ExceptionName>ExImpl err(__FILE__, __LINE__, "<CustomMessage>");
err.log();
throw err.get<ExceptionName>Ex(); |
...
