ACE  6.1.0
Public Types | Public Member Functions | Public Attributes | Protected Types | Protected Attributes
ACE_Process_Strategy< SVC_HANDLER > Class Template Reference

Defines the interface for specifying a concurrency strategy for a SVC_HANDLER based on multiprocessing. More...

#include <Strategies_T.h>

Inheritance diagram for ACE_Process_Strategy< SVC_HANDLER >:
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List of all members.

Public Types

typedef
ACE_Concurrency_Strategy
< SVC_HANDLER > 
base_type

Public Member Functions

 ACE_Process_Strategy (size_t n_processes=1, ACE_Event_Handler *acceptor=0, ACE_Reactor *=0, int avoid_zombies=0)
virtual int open (size_t n_processes=1, ACE_Event_Handler *acceptor=0, ACE_Reactor *=0, int avoid_zombies=0)
virtual ~ACE_Process_Strategy (void)
virtual int activate_svc_handler (SVC_HANDLER *svc_handler, void *arg=0)
void dump (void) const
 Dump the state of an object.

Public Attributes

 ACE_ALLOC_HOOK_DECLARE
 Declare the dynamic allocation hooks.

Protected Types

typedef
ACE_Concurrency_Strategy
< SVC_HANDLER > 
inherited

Protected Attributes

size_t n_processes_
 Number of processes to spawn.
ACE_Event_Handleracceptor_
ACE_Reactorreactor_

Detailed Description

template<class SVC_HANDLER>
class ACE_Process_Strategy< SVC_HANDLER >

Defines the interface for specifying a concurrency strategy for a SVC_HANDLER based on multiprocessing.

This class provides a strategy that manages the creation of processes to handle requests from clients concurrently using a process-per-connection model. It behaves as a "process factory", using ACE::fork() to fork threads "on-demand" to run the service specified by a user-supplied SVC_HANDLER in a separate process.


Member Typedef Documentation

template<class SVC_HANDLER >
typedef ACE_Concurrency_Strategy<SVC_HANDLER> ACE_Process_Strategy< SVC_HANDLER >::base_type
template<class SVC_HANDLER >
typedef ACE_Concurrency_Strategy<SVC_HANDLER> ACE_Process_Strategy< SVC_HANDLER >::inherited [protected]

Constructor & Destructor Documentation

template<class SVC_HANDLER >
ACE_Process_Strategy< SVC_HANDLER >::ACE_Process_Strategy ( size_t  n_processes = 1,
ACE_Event_Handler acceptor = 0,
ACE_Reactor reactor = 0,
int  avoid_zombies = 0 
) [inline]

Initialize the strategy. If avoid_zombies is non-0 then set a flag to ACE::fork() to avoid zombies.

template<class SVC_HANDLER >
ACE_Process_Strategy< SVC_HANDLER >::~ACE_Process_Strategy ( void  ) [virtual]

Member Function Documentation

template<class SVC_HANDLER >
int ACE_Process_Strategy< SVC_HANDLER >::activate_svc_handler ( SVC_HANDLER *  svc_handler,
void *  arg = 0 
) [virtual]

Activate the svc_handler with an appropriate concurrency strategy. This method activates the SVC_HANDLER by first forking and then calling the open() method of the SVC_HANDLER in the child.

Reimplemented from ACE_Concurrency_Strategy< SVC_HANDLER >.

template<class SVC_HANDLER >
void ACE_Process_Strategy< SVC_HANDLER >::dump ( void  ) const

Dump the state of an object.

Reimplemented from ACE_Concurrency_Strategy< SVC_HANDLER >.

template<class SVC_HANDLER >
int ACE_Process_Strategy< SVC_HANDLER >::open ( size_t  n_processes = 1,
ACE_Event_Handler acceptor = 0,
ACE_Reactor reactor = 0,
int  avoid_zombies = 0 
) [virtual]

Initialize the strategy. If avoid_zombies is non-0 then set a flag to ACE::fork() to avoid zombies.


Member Data Documentation

template<class SVC_HANDLER >
ACE_Event_Handler* ACE_Process_Strategy< SVC_HANDLER >::acceptor_ [protected]

This is the Acceptor in the parent is listening on. We need to make sure that we remove it from the Reactor and close it down in the child.

template<class SVC_HANDLER >
ACE_Process_Strategy< SVC_HANDLER >::ACE_ALLOC_HOOK_DECLARE

Declare the dynamic allocation hooks.

Reimplemented from ACE_Concurrency_Strategy< SVC_HANDLER >.

template<class SVC_HANDLER >
size_t ACE_Process_Strategy< SVC_HANDLER >::n_processes_ [protected]

Number of processes to spawn.

template<class SVC_HANDLER >
ACE_Reactor* ACE_Process_Strategy< SVC_HANDLER >::reactor_ [protected]

This is the reactor the child is using in conjunction with the acceptor. We need to remove the acceptor from this reactor in the child.


The documentation for this class was generated from the following files:
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