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 >:

[legend]Collaboration diagram for ACE_Process_Strategy< SVC_HANDLER >:

[legend]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_Handler *	acceptor_
ACE_Reactor *	reactor_

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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.

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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]

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Constructor & Destructor Documentation

template<class SVC_HANDLER> ACE_INLINE ACE_Process_Strategy< SVC_HANDLER >::ACE_Process_Strategy (  size_t  n_processes = 1, ACE_Event_Handler *  acceptor = 0, ACE_Reactor *  = 0, int  avoid_zombies = 0 )

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

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

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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 *  = 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.

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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.

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

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

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