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// -*- C++ -*-
//==========================================================================
/**
* @file Service_Types.h
*
* $Id$
*
* @author Douglas C. Schmidt <schmidt@cs.wustl.edu>
*/
//==========================================================================
#ifndef ACE_SERVICE_TYPE_H
#define ACE_SERVICE_TYPE_H
#include "ace/pre.h"
#include "ace/Service_Object.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/ACE.h"
#include "ace/Synch.h"
/**
* @class ACE_Service_Type_Impl
*
* @brief The abstract base class of the hierarchy that defines the
* contents of the <ACE_Service_Repository>. The subclasses of
* this class allow the configuration of <ACE_Service_Objects>,
* <ACE_Modules>, and <ACE_Streams>.
*
* This class provides the root of the implementation hierarchy
* of the "Bridge" pattern. It maintains a pointer to the
* appropriate type of service implementation, i.e.,
* <ACE_Service_Object>, <ACE_Module>, or <ACE_Stream>.
*/
class ACE_Export ACE_Service_Type_Impl
{
public:
// = Initialization and termination methods.
ACE_Service_Type_Impl (void *object,
const ACE_TCHAR *s_name,
u_int flags = 0,
ACE_Service_Object_Exterminator gobbler = 0);
virtual ~ACE_Service_Type_Impl (void);
// = Pure virtual interface (must be defined by the subclass).
virtual int suspend (void) const = 0;
virtual int resume (void) const = 0;
virtual int init (int argc, ACE_TCHAR *argv[]) const = 0;
virtual int fini (void) const;
virtual int info (ACE_TCHAR **str, size_t len) const = 0;
/// The pointer to the service.
void *object (void) const;
/// Get the name of the service.
const ACE_TCHAR *name (void) const;
/// Set the name of the service.
void name (const ACE_TCHAR *);
/// Dump the state of an object.
void dump (void) const;
/// Declare the dynamic allocation hooks.
ACE_ALLOC_HOOK_DECLARE;
protected:
/// Name of the service.
const ACE_TCHAR *name_;
/// Pointer to object that implements the service. This actually
/// points to an <ACE_Service_Object>, <ACE_Module>, or <ACE_Stream>.
void *obj_;
/// Destroy function to deallocate obj_.
ACE_Service_Object_Exterminator gobbler_;
/// Flags that control serivce behavior (particularly deletion).
u_int flags_;
};
/**
* @class ACE_Service_Object_Type
*
* @brief Define the methods for handling the configuration of
* <ACE_Service_Objects>.
*/
class ACE_Export ACE_Service_Object_Type : public ACE_Service_Type_Impl
{
public:
// = Initialization method.
ACE_Service_Object_Type (void *so,
const ACE_TCHAR *name,
u_int flags = 0,
ACE_Service_Object_Exterminator gobbler = 0);
~ACE_Service_Object_Type (void);
// = Implement the hooks for <ACE_Service_Objects>.
virtual int suspend (void) const;
virtual int resume (void) const;
virtual int init (int argc, ACE_TCHAR *argv[]) const;
virtual int fini (void) const;
virtual int info (ACE_TCHAR **str, size_t len) const;
};
/**
* @class ACE_Module_Type
*
* @brief Define the methods for handling the configuration of
* <ACE_Modules>.
*/
class ACE_Export ACE_Module_Type : public ACE_Service_Type_Impl
{
public:
// = Initialization method.
ACE_Module_Type (void *m, // Really an <ACE_Module> *.
const ACE_TCHAR *identifier,
u_int flags = 0);
~ACE_Module_Type (void);
// = Implement the hooks for <ACE_Modules>.
virtual int suspend (void) const;
virtual int resume (void) const;
virtual int init (int argc, ACE_TCHAR *argv[]) const;
virtual int fini (void) const;
virtual int info (ACE_TCHAR **str, size_t len) const;
// Get the link pointer.
ACE_Module_Type *link (void) const;
// Set the link pointer.
void link (ACE_Module_Type *);
/// Dump the state of an object.
void dump (void) const;
/// Declare the dynamic allocation hooks.
ACE_ALLOC_HOOK_DECLARE;
private:
/// Pointer to the next <ACE_Module_Type> in an <ACE_Stream_Type>.
ACE_Module_Type *link_;
};
/**
* @class ACE_Stream_Type
*
* @brief Define the methods for handling the configuration of
* <ACE_Streams>.
*/
class ACE_Export ACE_Stream_Type : public ACE_Service_Type_Impl
{
public:
// = Initialization method.
ACE_Stream_Type (void *s, // Really an <ACE_Stream> *.
const ACE_TCHAR *identifier,
u_int flags = 0);
~ACE_Stream_Type (void);
// = Implement the hooks for <ACE_Streams>.
virtual int suspend (void) const;
virtual int resume (void) const;
virtual int init (int argc, ACE_TCHAR *argv[]) const;
virtual int fini (void) const;
virtual int info (ACE_TCHAR **str, size_t len) const;
/// Add a new <ACE_Module> to the top of the <ACE_Stream>.
int push (ACE_Module_Type *new_module);
/// Search for <module> and remove it from the <ACE_Stream>.
int remove (ACE_Module_Type *module);
/// Locate the <ACE_Module> with <mod_name>.
ACE_Module_Type *find (const ACE_TCHAR *mod_name) const;
/// Dump the state of an object.
void dump (void) const;
/// Declare the dynamic allocation hooks.
ACE_ALLOC_HOOK_DECLARE;
private:
/// Pointer to the head of the <ACE_Module> list.
ACE_Module_Type *head_;
};
#if defined (__ACE_INLINE__)
#include "ace/Service_Types.i"
#endif /* __ACE_INLINE__ */
#include "ace/post.h"
#endif /* _SERVICE_TYPE_H */
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