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 >:

Collaboration diagram for ACE_Process_Strategy< SVC_HANDLER >:

Public Types
typedef ACE_Concurrency_Strategy< SVC_HANDLER >	base_type
Public Types inherited from ACE_Concurrency_Strategy< SVC_HANDLER >
typedef SVC_HANDLER::addr_type	addr_type
typedef SVC_HANDLER	handler_type
typedef SVC_HANDLER::stream_type	stream_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. More...
Public Member Functions inherited from ACE_Concurrency_Strategy< SVC_HANDLER >
	ACE_Concurrency_Strategy (int flags=0)
	Constructor. More...
virtual	~ACE_Concurrency_Strategy (void)
void	dump (void) const
	Dump the state of an object. More...

Public Attributes
	ACE_ALLOC_HOOK_DECLARE
	Declare the dynamic allocation hooks. More...
Public Attributes inherited from ACE_Concurrency_Strategy< SVC_HANDLER >
	ACE_ALLOC_HOOK_DECLARE
	Declare the dynamic allocation hooks. More...

Protected Types
typedef ACE_Concurrency_Strategy< SVC_HANDLER >	inherited

Protected Attributes
size_t	n_processes_
	Number of processes to spawn. More...
ACE_Event_Handler *	acceptor_
ACE_Reactor *	reactor_
Protected Attributes inherited from ACE_Concurrency_Strategy< SVC_HANDLER >
int	flags_

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.

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.

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.

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

• Strategies_T.h
• Strategies_T.cpp
• Strategies_T.inl