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author | William R. Otte <wotte@dre.vanderbilt.edu> | 2006-07-24 15:50:30 +0000 |
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committer | William R. Otte <wotte@dre.vanderbilt.edu> | 2006-07-24 15:50:30 +0000 |
commit | c44379cc7d9c7aa113989237ab0f56db12aa5219 (patch) | |
tree | 66a84b20d47f2269d8bdc6e0323f338763424d3a /ACE/ace/Acceptor.h | |
parent | 3aff90f4a822fcf5d902bbfbcc9fa931d6191a8c (diff) | |
download | ATCD-c44379cc7d9c7aa113989237ab0f56db12aa5219.tar.gz |
Repo restructuring
Diffstat (limited to 'ACE/ace/Acceptor.h')
-rw-r--r-- | ACE/ace/Acceptor.h | 683 |
1 files changed, 683 insertions, 0 deletions
diff --git a/ACE/ace/Acceptor.h b/ACE/ace/Acceptor.h new file mode 100644 index 00000000000..a1ebcd9c055 --- /dev/null +++ b/ACE/ace/Acceptor.h @@ -0,0 +1,683 @@ +// -*- C++ -*- + +//============================================================================= +/** + * @file Acceptor.h + * + * $Id$ + * + * @author Douglas C. Schmidt <schmidt@cs.wustl.edu> + */ +//============================================================================= + +#ifndef ACE_ACCEPTOR_H +#define ACE_ACCEPTOR_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/Strategies_T.h" +#include "ace/Synch_Options.h" + +ACE_BEGIN_VERSIONED_NAMESPACE_DECL + +/** + * @class ACE_Acceptor + * + * @brief Abstract factory for creating a service handler + * (SVC_HANDLER), accepting into the SVC_HANDLER, and + * activating the SVC_HANDLER. + * + * Implements the basic strategy for passively establishing + * connections with clients. An ACE_Acceptor is parameterized + * by concrete types that conform to the interfaces of + * PEER_ACCEPTOR and SVC_HANDLER. The PEER_ACCEPTOR is + * instantiated with a transport mechanism that passively + * establishes connections. The SVC_HANDLER is instantiated + * with a concrete type that performs the application-specific + * service. An ACE_Acceptor inherits from ACE_Service_Object, + * which in turn inherits from ACE_Event_Handler. This enables + * the ACE_Reactor to dispatch the ACE_Acceptor's handle_input + * method when connection events occur. The handle_input method + * performs the ACE_Acceptor's default creation, connection + * establishment, and service activation strategies. These + * strategies can be overridden by subclasses individually or as + * a group. + */ +template <class SVC_HANDLER, ACE_PEER_ACCEPTOR_1> +class ACE_Acceptor : public ACE_Service_Object +{ +public: + + // Useful STL-style traits. + typedef ACE_PEER_ACCEPTOR_ADDR addr_type; + typedef ACE_PEER_ACCEPTOR acceptor_type; + typedef SVC_HANDLER handler_type; + typedef ACE_TYPENAME SVC_HANDLER::stream_type stream_type; + + /// "Do-nothing" constructor. + ACE_Acceptor (ACE_Reactor * = 0, + int use_select = 1); + + /** + * Open the contained @c PEER_ACCEPTOR object to begin listening, and + * register with the specified reactor for accept events. An + * acceptor can only listen to one port at a time, so make sure to + * @c close() the acceptor before calling @c open() again. + * + * The @c PEER_ACCEPTOR handle is put into non-blocking mode as a + * safeguard against the race condition that can otherwise occur + * between the time when the passive-mode socket handle is "ready" + * and when the actual @c accept() call is made. During this + * interval, the client can shutdown the connection, in which case, + * the @c accept() call can hang. + * + * @param local_addr The address to listen at. + * @param reactor Pointer to the ACE_Reactor instance to register + * this object with. The default is the singleton. + * @param flags Flags to control what mode an accepted socket + * will be put into after it is accepted. The only + * legal value for this argument is @c ACE_NONBLOCK, + * which enables non-blocking mode on the accepted + * peer stream object in @c SVC_HANDLER. The default + * is 0. + * @param use_select Affects behavior when called back by the reactor + * when a connection can be accepted. If non-zero, + * this object will accept all pending connections, + * intead of just the one that triggered the reactor + * callback. Uses ACE_OS::select() internally to + * detect any remaining acceptable connections. + * The default is 1. + * @param reuse_addr Passed to the @c PEER_ACCEPTOR::open() method with + * @p local_addr. Generally used to request that the + * OS allow reuse of the listen port. The default is 1. + */ + ACE_Acceptor (const ACE_PEER_ACCEPTOR_ADDR &local_addr, + ACE_Reactor * = ACE_Reactor::instance (), + int flags = 0, + int use_select = 1, + int reuse_addr = 1); + + /** + * Open the contained @c PEER_ACCEPTOR object to begin listening, and + * register with the specified reactor for accept events. An + * acceptor can only listen to one port at a time, so make sure to + * @c close() the acceptor before calling @c open() again. + * + * The @c PEER_ACCEPTOR handle is put into non-blocking mode as a + * safeguard against the race condition that can otherwise occur + * between the time when the passive-mode socket handle is "ready" + * and when the actual @c accept() call is made. During this + * interval, the client can shutdown the connection, in which case, + * the @c accept() call can hang. + * + * @param local_addr The address to listen at. + * @param reactor Pointer to the ACE_Reactor instance to register + * this object with. The default is the singleton. + * @param flags Flags to control what mode an accepted socket + * will be put into after it is accepted. The only + * legal value for this argument is @c ACE_NONBLOCK, + * which enables non-blocking mode on the accepted + * peer stream object in @c SVC_HANDLER. The default + * is 0. + * @param use_select Affects behavior when called back by the reactor + * when a connection can be accepted. If non-zero, + * this object will accept all pending connections, + * intead of just the one that triggered the reactor + * callback. Uses ACE_OS::select() internally to + * detect any remaining acceptable connections. + * The default is 1. + * @param reuse_addr Passed to the @c PEER_ACCEPTOR::open() method with + * @p local_addr. Generally used to request that the + * OS allow reuse of the listen port. The default is 1. + * + * @retval 0 Success + * @retval -1 Failure, @c errno contains an error code. + */ + virtual int open (const ACE_PEER_ACCEPTOR_ADDR &local_addr, + ACE_Reactor *reactor = ACE_Reactor::instance (), + int flags = 0, + int use_select = 1, + int reuse_addr = 1); + + /// Close down the Acceptor's resources. + virtual ~ACE_Acceptor (void); + + /// Return the underlying PEER_ACCEPTOR object. + virtual operator ACE_PEER_ACCEPTOR &() const; + + /// Return the underlying PEER_ACCEPTOR object. + virtual ACE_PEER_ACCEPTOR &acceptor (void) const; + + /// Returns the listening acceptor's {ACE_HANDLE}. + virtual ACE_HANDLE get_handle (void) const; + + /// Close down the Acceptor + virtual int close (void); + + /// Dump the state of an object. + void dump (void) const; + + /// Declare the dynamic allocation hooks. + ACE_ALLOC_HOOK_DECLARE; + +protected: + // = The following three methods define the Acceptor's strategies + // for creating, accepting, and activating SVC_HANDLER's, + // respectively. + + /** + * Bridge method for creating a SVC_HANDLER. The default is to + * create a new {SVC_HANDLER} if {sh} == 0, else {sh} is unchanged. + * However, subclasses can override this policy to perform + * SVC_HANDLER creation in any way that they like (such as creating + * subclass instances of SVC_HANDLER, using a singleton, dynamically + * linking the handler, etc.). Returns -1 on failure, else 0. + */ + virtual int make_svc_handler (SVC_HANDLER *&sh); + + /** + * Bridge method for accepting the new connection into the + * <svc_handler>. The default behavior delegates to the + * PEER_ACCEPTOR::accept. + */ + virtual int accept_svc_handler (SVC_HANDLER *svc_handler); + + /** + * Bridge method for activating a {svc_handler} with the appropriate + * concurrency strategy. The default behavior of this method is to + * activate the SVC_HANDLER by calling its {open} method (which + * allows the SVC_HANDLER to define its own concurrency strategy). + * However, subclasses can override this strategy to do more + * sophisticated concurrency activations (such as making the + * SVC_HANDLER as an "active object" via multi-threading or + * multi-processing). + */ + virtual int activate_svc_handler (SVC_HANDLER *svc_handler); + + // = Demultiplexing hooks. + /// Perform termination activities when {this} is removed from the + /// {reactor}. + virtual int handle_close (ACE_HANDLE = ACE_INVALID_HANDLE, + ACE_Reactor_Mask = ACE_Event_Handler::ALL_EVENTS_MASK); + + /// Accepts all pending connections from clients, and creates and + /// activates SVC_HANDLERs. + virtual int handle_input (ACE_HANDLE); + + // = Dynamic linking hooks. + /// Default version does no work and returns -1. Must be overloaded + /// by application developer to do anything meaningful. + virtual int init (int argc, ACE_TCHAR *argv[]); + + /// Calls {handle_close}. + virtual int fini (void); + + /// Default version returns address info in {buf}. + virtual int info (ACE_TCHAR **buf, size_t) const; + +public: + // = Service management hooks. + /// This method calls {Reactor::suspend}. + virtual int suspend (void); + + /// This method calls {Reactor::resume}. + virtual int resume (void); + +protected: + /// Concrete factory for accepting connections from clients... + ACE_PEER_ACCEPTOR peer_acceptor_; + + /// Needed to reopen the socket if {accept} fails. + ACE_PEER_ACCEPTOR_ADDR peer_acceptor_addr_; + + /** + * Flags that indicate how {SVC_HANDLER}'s should be initialized + * prior to being activated. Right now, the only flag that is + * processed is {ACE_NONBLOCK}, which enabled non-blocking I/O on + * the {SVC_HANDLER} when it is opened. + */ + int flags_; + + /// Flag that indicates whether it shall use {select} in the + /// {accept}-loop. + int use_select_; + + /// Needed to reopen the socket if {accept} fails. + int reuse_addr_; +}; + +/** + * @class ACE_Strategy_Acceptor + * + * @brief Abstract factory for creating a service handler + * (SVC_HANDLER), accepting into the SVC_HANDLER, and activating + * the SVC_HANDLER. + * + * Implements a flexible and extensible set of strategies for + * passively establishing connections with clients. There are + * three main strategies: (1) creating a SVC_HANDLER, (2) + * passively accepting a new connection from a client into the + * SVC_HANDLER, and (3) activating the SVC_HANDLER with a + * particular concurrency mechanism. + */ +template <class SVC_HANDLER, ACE_PEER_ACCEPTOR_1> +class ACE_Strategy_Acceptor + : public ACE_Acceptor <SVC_HANDLER, ACE_PEER_ACCEPTOR_2> +{ +public: + + // Useful STL-style traits. + typedef ACE_Creation_Strategy<SVC_HANDLER> + creation_strategy_type; + typedef ACE_Accept_Strategy<SVC_HANDLER, ACE_PEER_ACCEPTOR_2> + accept_strategy_type; + typedef ACE_Concurrency_Strategy<SVC_HANDLER> + concurrency_strategy_type; + typedef ACE_Scheduling_Strategy<SVC_HANDLER> scheduling_strategy_type; + typedef ACE_Acceptor <SVC_HANDLER, ACE_PEER_ACCEPTOR_2> + base_type; + + // = Define some useful (old style) traits. + typedef ACE_Creation_Strategy<SVC_HANDLER> CREATION_STRATEGY; + typedef ACE_Accept_Strategy<SVC_HANDLER, ACE_PEER_ACCEPTOR_2> ACCEPT_STRATEGY; + typedef ACE_Concurrency_Strategy<SVC_HANDLER> CONCURRENCY_STRATEGY; + typedef ACE_Scheduling_Strategy<SVC_HANDLER> SCHEDULING_STRATEGY; + + + + /// Default constructor. + ACE_Strategy_Acceptor (const ACE_TCHAR service_name[] = 0, + const ACE_TCHAR service_description[] = 0, + int use_select = 1, + int reuse_addr = 1); + + /** + * Initialize the appropriate strategies for creation, passive + * connection acceptance, and concurrency, and then register {this} + * with the Reactor and listen for connection requests at the + * designated {local_addr}. + */ + ACE_Strategy_Acceptor (const ACE_PEER_ACCEPTOR_ADDR &local_addr, + ACE_Reactor * = ACE_Reactor::instance (), + ACE_Creation_Strategy<SVC_HANDLER> * = 0, + ACE_Accept_Strategy<SVC_HANDLER, ACE_PEER_ACCEPTOR_2> * = 0, + ACE_Concurrency_Strategy<SVC_HANDLER> * = 0, + ACE_Scheduling_Strategy<SVC_HANDLER> * = 0, + const ACE_TCHAR service_name[] = 0, + const ACE_TCHAR service_description[] = 0, + int use_select = 1, + int reuse_addr = 1); + + /** + * Open the contained @c PEER_ACCEPTOR object to begin listening, and + * register with the specified reactor for accept events. + * + * The @c PEER_ACCEPTOR handle is put into non-blocking mode as a + * safeguard against the race condition that can otherwise occur + * between the time when the passive-mode socket handle is "ready" + * and when the actual @c accept call is made. During this + * interval, the client can shutdown the connection, in which case, + * the {accept} call can hang. + * + * @param local_addr The address to listen at. + * @param reactor Pointer to the ACE_Reactor instance to register + * this object with. The default is the singleton. + * @param flags Flags to control what mode an accepted socket + * will be put into after it is accepted. The only + * legal value for this argument is @c ACE_NONBLOCK, + * which enables non-blocking mode on the accepted + * peer stream object in @c SVC_HANDLER. The default + * is 0. + * @param use_select Affects behavior when called back by the reactor + * when a connection can be accepted. If non-zero, + * this object will accept all pending connections, + * intead of just the one that triggered the reactor + * callback. Uses ACE_OS::select() internally to + * detect any remaining acceptable connections. + * The default is 1. + * @param reuse_addr Passed to the @c PEER_ACCEPTOR::open() method with + * @p local_addr. Generally used to request that the + * OS allow reuse of the listen port. The default is 1. + * + * @retval 0 Success + * @retval -1 Failure, @c errno contains an error code. + */ + virtual int open (const ACE_PEER_ACCEPTOR_ADDR &local_addr, + ACE_Reactor *reactor, + int flags = 0, + int use_select = 1, + int reuse_addr = 1); + + /** + * Initialize the appropriate strategies for creation, passive + * connection acceptance, and concurrency, and then register {this} + * with the Reactor and listen for connection requests at the + * designated {local_addr}. + */ + virtual int open (const ACE_PEER_ACCEPTOR_ADDR &, + ACE_Reactor * = ACE_Reactor::instance (), + ACE_Creation_Strategy<SVC_HANDLER> * = 0, + ACE_Accept_Strategy<SVC_HANDLER, ACE_PEER_ACCEPTOR_2> * =0, + ACE_Concurrency_Strategy<SVC_HANDLER> * = 0, + ACE_Scheduling_Strategy<SVC_HANDLER> * = 0, + const ACE_TCHAR *service_name = 0, + const ACE_TCHAR *service_description = 0, + int use_select = 1, + int reuse_addr = 1); + + /// Close down the Strategy_Acceptor's resources. + virtual ~ACE_Strategy_Acceptor (void); + + /// Return the underlying PEER_ACCEPTOR object. + virtual operator ACE_PEER_ACCEPTOR &() const; + + /// Return the underlying PEER_ACCEPTOR object. + virtual ACE_PEER_ACCEPTOR &acceptor (void) const; + + /// Returns the listening acceptor's {ACE_HANDLE}. + virtual ACE_HANDLE get_handle (void) const; + + /// Dump the state of an object. + void dump (void) const; + + /// Declare the dynamic allocation hooks. + ACE_ALLOC_HOOK_DECLARE; + +protected: + // = Service management hooks. + + /// This method delegates to the {Scheduling_Strategy}'s {suspend} + /// method. + virtual int suspend (void); + + /// This method delegates to the {Scheduling_Strategy}'s {resume} + /// method. + virtual int resume (void); + + /// Calls {handle_close} when dynamically unlinked. + virtual int fini (void); + + /// Default version returns address info in {buf}. + virtual int info (ACE_TCHAR **buf, size_t) const; + + // = The following three methods define the {Acceptor}'s strategies + // for creating, accepting, and activating {SVC_HANDLER}'s, + // respectively. + + /** + * Bridge method for creating a {SVC_HANDLER}. The strategy for + * creating a {SVC_HANDLER} are configured into the Acceptor via + * it's {creation_strategy_}. The default is to create a new + * {SVC_HANDLER} if {sh} == 0, else {sh} is unchanged. However, + * subclasses can override this policy to perform {SVC_HANDLER} + * creation in any way that they like (such as creating subclass + * instances of {SVC_HANDLER}, using a singleton, dynamically + * linking the handler, etc.). Returns -1 on failure, else 0. + */ + virtual int make_svc_handler (SVC_HANDLER *&); + + /** + * Bridge method for accepting the new connection into the + * {SVC_HANDLER}. The default behavior delegates to the + * {PEER_ACCEPTOR::accept} in the {Acceptor_Strategy}. + */ + virtual int accept_svc_handler (SVC_HANDLER *svc_handler); + + /** + * Bridge method for activating a {SVC_HANDLER} with the appropriate + * concurrency strategy. The default behavior of this method is to + * activate the {SVC_HANDLER} by calling its {open} method (which + * allows the {SVC_HANDLER} to define its own concurrency strategy). + * However, subclasses can override this strategy to do more + * sophisticated concurrency activations (such as creating the + * {SVC_HANDLER} as an "active object" via multi-threading or + * multi-processing). + */ + virtual int activate_svc_handler (SVC_HANDLER *svc_handler); + + // = Demultiplexing hooks. + /// Perform termination activities when {this} is removed from the + /// {Reactor}. + virtual int handle_close (ACE_HANDLE = ACE_INVALID_HANDLE, + ACE_Reactor_Mask = ACE_Event_Handler::ALL_EVENTS_MASK); + + /// Handle SIGINT. + virtual int handle_signal (int signum, siginfo_t *, ucontext_t *); + + // = These data members are "logically private" but are put in the + // protected part in case subclasses want to access them. + + // = Strategy objects. + + /// Creation strategy for an Acceptor. + CREATION_STRATEGY *creation_strategy_; + + /// 1 if {Acceptor} created the creation strategy and thus should + /// delete it, else 0. + int delete_creation_strategy_; + + /// Accept strategy for an {Acceptor}. + ACCEPT_STRATEGY *accept_strategy_; + + /// 1 if {Acceptor} created the accept strategy and thus should delete + /// it, else 0. + int delete_accept_strategy_; + + /// Concurrency strategy for an {Acceptor}. + CONCURRENCY_STRATEGY *concurrency_strategy_; + + /// 1 if {Acceptor} created the concurrency strategy and thus should + /// delete it, else 0. + int delete_concurrency_strategy_; + + /// Scheduling strategy for an {Acceptor}. + SCHEDULING_STRATEGY *scheduling_strategy_; + + /// 1 if {Acceptor} created the scheduling strategy and thus should + /// delete it, else 0. + int delete_scheduling_strategy_; + + // = Service information objects. + + /// Name of the service. + ACE_TCHAR *service_name_; + + /// Description of the service. + ACE_TCHAR *service_description_; + + /// Address that the {Strategy_Acceptor} uses to listen for + /// connections. + ACE_PEER_ACCEPTOR_ADDR service_addr_; +}; + +/** + * @class ACE_Oneshot_Acceptor + * + * @brief Generic factory for passively connecting clients and creating + * exactly one service handler (SVC_HANDLER). + * + * This class works similarly to the regular {ACE_Acceptor}, + * with the following differences: + * 1. This class doesn't automagically register {this} with the + * {ACE_Reactor} since it expects to have its {accept} method + * called directly. However, it stashes the {ACE_Reactor} + * pointer away in case it's needed later to finish accepting + * a connection asynchronously. + * 2. The class doesn't need an {ACE_Creation_Strategy} (since + * the user supplies the SVC_HANDLER) or an + * {ACE_Accept_Strategy} (since this class only accepts one + * connection and then removes all traces of itself from the + * {ACE_Reactor} if it was registered for asynchronous + * accepts). + */ +template <class SVC_HANDLER, ACE_PEER_ACCEPTOR_1> +class ACE_Oneshot_Acceptor : public ACE_Service_Object +{ +public: + + // Useful STL-style traits. + typedef ACE_PEER_ACCEPTOR_ADDR addr_type; + typedef ACE_PEER_ACCEPTOR acceptor_type; + typedef SVC_HANDLER handler_type; + typedef ACE_TYPENAME SVC_HANDLER::stream_type stream_type; + + /// Constructor. + ACE_Oneshot_Acceptor (void); + + /** + * Initialize the appropriate strategies for concurrency and then + * open the {peer_acceptor} at the designated {local_addr}. Note + * that unlike the {ACE_Acceptor} and {ACE_Strategy_Acceptor}, this + * method does NOT register {this} acceptor with the {reactor} at + * this point -- it just stashes the {reactor} away in case it's + * needed later. + */ + ACE_Oneshot_Acceptor (const ACE_PEER_ACCEPTOR_ADDR &local_addr, + ACE_Reactor *reactor = ACE_Reactor::instance (), + ACE_Concurrency_Strategy<SVC_HANDLER> * = 0); + + /** + * Initialize the appropriate strategies for concurrency and then + * open the {peer_acceptor} at the designated {local_addr}. Note + * that unlike the {ACE_Acceptor} and {ACE_Strategy_Acceptor}, this + * method does NOT register {this} acceptor with the {reactor} at + * this point -- it just stashes the {reactor} away in case it's + * needed later. + */ + int open (const ACE_PEER_ACCEPTOR_ADDR &, + ACE_Reactor *reactor = ACE_Reactor::instance (), + ACE_Concurrency_Strategy<SVC_HANDLER> * = 0); + + /// Close down the {Oneshot_Acceptor}. + virtual ~ACE_Oneshot_Acceptor (void); + + // = Explicit factory operation. + /// Create a {SVC_HANDLER}, accept the connection into the + /// {SVC_HANDLER}, and activate the {SVC_HANDLER}. + virtual int accept (SVC_HANDLER * = 0, + ACE_PEER_ACCEPTOR_ADDR *remote_addr = 0, + const ACE_Synch_Options &synch_options = ACE_Synch_Options::defaults, + int restart = 1, + int reset_new_handle = 0); + + /// Cancel a oneshot acceptor that was started asynchronously. + virtual int cancel (void); + + /// Return the underlying {PEER_ACCEPTOR} object. + virtual operator ACE_PEER_ACCEPTOR &() const; + + /// Return the underlying {PEER_ACCEPTOR} object. + virtual ACE_PEER_ACCEPTOR &acceptor (void) const; + + /// Close down the {Oneshot_Acceptor}. + virtual int close (void); + + /// Dump the state of an object. + void dump (void) const; + + /// Declare the dynamic allocation hooks. + ACE_ALLOC_HOOK_DECLARE; + +protected: + /** + * Bridge method for activating a {svc_handler} with the appropriate + * concurrency strategy. Default behavior is to activate the + * {SVC_HANDLER} as a "passive object." However, subclasses can + * override this strategy to do more sophisticated concurrency + * activations (such as creating the {SVC_HANDLER} as an "active + * object" via multi-threading or multi-processing). + */ + virtual int activate_svc_handler (SVC_HANDLER *svc_handler); + + /// Factors out the code shared between the {accept} and + /// {handle_input} methods. + int shared_accept (SVC_HANDLER *svc_handler, + ACE_PEER_ACCEPTOR_ADDR *remote_addr, + ACE_Time_Value *timeout, + int restart, + int reset_new_handle); + + // = Demultiplexing hooks. + /// Returns the listening acceptor's {ACE_HANDLE}. + virtual ACE_HANDLE get_handle (void) const; + + /// Perform termination activities when {this} is removed from the + /// {reactor}. + virtual int handle_close (ACE_HANDLE = ACE_INVALID_HANDLE, + ACE_Reactor_Mask = ACE_Event_Handler::ALL_EVENTS_MASK); + + /// Accept one connection from a client and activates the + /// SVC_HANDLER. + virtual int handle_input (ACE_HANDLE); + + /// Called when an acceptor times out... + virtual int handle_timeout (const ACE_Time_Value &tv, + const void *arg); + + // = Dynamic linking hooks. + /// Default version does no work and returns -1. Must be overloaded + /// by application developer to do anything meaningful. + virtual int init (int argc, ACE_TCHAR *argv[]); + + /// Default version does no work and returns -1. Must be overloaded + /// by application developer to do anything meaningful. + virtual int fini (void); + + /// Default version returns address info in {buf}. + virtual int info (ACE_TCHAR **, size_t) const; + + // = Service management hooks. + /// Default version does no work and returns -1. Must be overloaded + /// by application developer to do anything meaningful. + virtual int suspend (void); + + /// Default version does no work and returns -1. Must be overloaded + /// by application developer to do anything meaningful. + virtual int resume (void); + +private: + /** + * Insert ourselves into the {ACE_Reactor} so that we can continue + * accepting this connection asynchronously. This method should NOT + * be called by developers directly. + */ + int register_handler (SVC_HANDLER *svc_handler, + const ACE_Synch_Options &options, + int restart); + + /// Hold the svc_handler_ across asynchrony boundaries. + SVC_HANDLER *svc_handler_; + + /// Hold the restart flag across asynchrony boundaries. + int restart_; + + /// Factory that establishes connections passively. + ACE_PEER_ACCEPTOR peer_acceptor_; + + /// Concurrency strategy for an Acceptor. + ACE_Concurrency_Strategy<SVC_HANDLER> *concurrency_strategy_; + + /// 1 if Acceptor created the concurrency strategy and thus should + /// delete it, else 0. + int delete_concurrency_strategy_; +}; + +ACE_END_VERSIONED_NAMESPACE_DECL + +#if defined (ACE_TEMPLATES_REQUIRE_SOURCE) +#include "ace/Acceptor.cpp" +#endif /* ACE_TEMPLATES_REQUIRE_SOURCE */ + +#if defined (ACE_TEMPLATES_REQUIRE_PRAGMA) +#pragma implementation ("Acceptor.cpp") +#endif /* ACE_TEMPLATES_REQUIRE_PRAGMA */ + +#include /**/ "ace/post.h" + +#endif /* ACE_ACCEPTOR_H */ |