diff options
Diffstat (limited to 'ace/Select_Reactor_T.h')
| -rw-r--r-- | ace/Select_Reactor_T.h | 742 |
1 files changed, 0 insertions, 742 deletions
diff --git a/ace/Select_Reactor_T.h b/ace/Select_Reactor_T.h deleted file mode 100644 index 6537effca36..00000000000 --- a/ace/Select_Reactor_T.h +++ /dev/null @@ -1,742 +0,0 @@ -/* -*- C++ -*- */ - -//============================================================================= -/** - * @file Select_Reactor_T.h - * - * $Id$ - * - * @author Doug Schmidt - */ -//============================================================================= - - -#ifndef ACE_SELECT_REACTOR_T_H -#define ACE_SELECT_REACTOR_T_H -#include "ace/pre.h" - -#include "ace/Select_Reactor_Base.h" - -#if !defined (ACE_LACKS_PRAGMA_ONCE) -# pragma once -#endif /* ACE_LACKS_PRAGMA_ONCE */ - -/** - * @class ACE_Select_Reactor_Token_T - * - * @brief Used as a synchronization mechanism to coordinate concurrent - * access to a Select_Reactor object. - * - * This class is used to make the <ACE_Select_Reactor> - * thread-safe. By default, the thread that runs the - * <handle_events> loop holds the token, even when it is blocked - * in the <select> call. Whenever another thread wants to - * access the <ACE_Reactor> via its <register_handler>, - * <remove_handler>, etc. methods) it must ask the token owner - * for temporary release of the token. To accomplish this, the - * owner of a token must define a <sleep_hook> through which it - * can be notified to temporarily release the token if the - * current situation permits this. - * The owner of the token is responsible for deciding which - * request for the token can be granted. By using the - * <ACE_Token::renew> API, the thread that releases the token - * temporarily can specify to get the token back right after the - * other thread has completed using the token. Thus, there is a - * dedicated thread that owns the token ``by default.'' This - * thread grants other threads access to the token by ensuring - * that whenever somebody else has finished using the token the - * ``default owner'' first holds the token again, i.e., the - * owner has the chance to schedule other threads. - * The thread that most likely needs the token most of the time - * is the thread running the dispatch loop. Typically the token - * gets released prior to entering the <select> call and gets - * ``re-acquired'' as soon as the <select> call returns, which - * results probably in many calls to <release>/<acquire> that - * are not really needed since no other thread would need the - * token in the meantime. That's why the dispatcher thread is - * chosen to be the owner of the token. - * In case the token would have been released while in <select> - * there would be a good chance that the <fd_set> could have - * been modified while the <select> returns from blocking and - * trying to re-acquire the lock. Through the token mechanism - * it is ensured that while another thread is holding the token, - * the dispatcher thread is blocked in the <renew> call and not - * in <select>. Thus, it is not critical to change the - * <fd_set>. The implementation of the <sleep_hook> mechanism - * provided by the <ACE_Select_Reactor_Token> enables the - * default owner to be the thread that executes the dispatch - * loop. - */ -template <class ACE_SELECT_REACTOR_MUTEX> -class ACE_Select_Reactor_Token_T : public ACE_SELECT_REACTOR_MUTEX -{ -public: - ACE_Select_Reactor_Token_T (ACE_Select_Reactor_Impl &r); - ACE_Select_Reactor_Token_T (void); - virtual ~ACE_Select_Reactor_Token_T (void); - - /// Called just before the ACE_Event_Handler goes to sleep. - virtual void sleep_hook (void); - - /// Set/Get methods - ACE_Select_Reactor_Impl &select_reactor (void); - void select_reactor (ACE_Select_Reactor_Impl &); - - /// Dump the state of an object. - virtual void dump (void) const; - - /// Declare the dynamic allocation hooks. - ACE_ALLOC_HOOK_DECLARE; - -private: - ACE_Select_Reactor_Impl *select_reactor_; -}; - -/** - * @class ACE_Select_Reactor_T - * - * @brief An object oriented event demultiplexor and event handler - * dispatcher. - * - * The <ACE_Select_Reactor> is an object-oriented event - * demultiplexor and event handler dispatcher. The sources of - * events that the <ACE_Select_Reactor> waits for and dispatches - * includes I/O events, signals, and timer events. All public - * methods acquire the main <ACE_Select_Reactor_Token> lock and - * call down to private or protected methods, which assume that - * the lock is held and so therefore don't (re)acquire the lock. - */ -template <class ACE_SELECT_REACTOR_TOKEN> -class ACE_Select_Reactor_T : public ACE_Select_Reactor_Impl -{ -public: - // = Initialization and termination methods. - - /// Initialize <ACE_Select_Reactor> with the default size. - ACE_Select_Reactor_T (ACE_Sig_Handler * = 0, - ACE_Timer_Queue * = 0, - int disable_notify_pipe = 0, - ACE_Reactor_Notify *notify = 0, - int mask_signals = 1); - - /// Initialize <ACE_Select_Reactor> with size <size>. - ACE_Select_Reactor_T (size_t size, - int restart = 0, - ACE_Sig_Handler * = 0, - ACE_Timer_Queue * = 0, - int disable_notify_pipe = 0, - ACE_Reactor_Notify *notify = 0, - int mask_signals = 1); - - /** - * Initialize the <ACE_Select_Reactor> to manage - * <max_number_of_handles>. If <restart> is non-0 then the - * <ACE_Reactor>'s <handle_events> method will be restarted - * automatically when <EINTR> occurs. If <signal_handler> or - * <timer_queue> are non-0 they are used as the signal handler and - * timer queue, respectively. If <disable_notify_pipe> is non-0 the - * notification pipe is not created, thereby saving two I/O handles. - */ - virtual int open (size_t max_number_of_handles = DEFAULT_SIZE, - int restart = 0, - ACE_Sig_Handler * = 0, - ACE_Timer_Queue * = 0, - int disable_notify_pipe = 0, - ACE_Reactor_Notify * = 0); - - /// Returns -1 (not used in this implementation); - virtual int current_info (ACE_HANDLE, size_t & /* size */); - - /// Use a user specified signal handler instead. - virtual int set_sig_handler (ACE_Sig_Handler *signal_handler); - - // = The following method is deprecated. Use <timer_queue> instead. - /// Set a user specified timer queue. - virtual int set_timer_queue (ACE_Timer_Queue *tq); - - /// Set a user-specified timer queue. - /// Return the current <ACE_Timer_Queue>. - virtual int timer_queue (ACE_Timer_Queue *tq); - virtual ACE_Timer_Queue *timer_queue (void) const; - - /// Close down the select_reactor and release all of its resources. - virtual int close (void); - - /// Close down the select_reactor and release all of its resources. - virtual ~ACE_Select_Reactor_T (void); - - // = Event loop drivers. - - /** - * Returns non-zero if there are I/O events "ready" for dispatching, - * but does not actually dispatch the event handlers. By default, - * don't block while checking this, i.e., "poll". - */ - virtual int work_pending (const ACE_Time_Value &max_wait_time = ACE_Time_Value::zero); - - /** - * This event loop driver that blocks for <max_wait_time> before - * returning. It will return earlier if timer events, I/O events, - * or signal events occur. Note that <max_wait_time> can be 0, in - * which case this method blocks indefinitely until events occur. - * - * <max_wait_time> is decremented to reflect how much time this call - * took. For instance, if a time value of 3 seconds is passed to - * handle_events and an event occurs after 2 seconds, - * <max_wait_time> will equal 1 second. This can be used if an - * application wishes to handle events for some fixed amount of - * time. - * - * Returns the total number of I/O and Timer <ACE_Event_Handler>s - * that were dispatched, 0 if the <max_wait_time> elapsed without - * dispatching any handlers, or -1 if something goes wrong. - * - * Current <alertable_handle_events> is identical to - * <handle_events>. - */ - virtual int handle_events (ACE_Time_Value *max_wait_time = 0); - virtual int alertable_handle_events (ACE_Time_Value *max_wait_time = 0); - - /** - * This method is just like the one above, except the - * <max_wait_time> value is a reference and can therefore never be - * NULL. - * - * Current <alertable_handle_events> is identical to - * <handle_events>. - */ - virtual int handle_events (ACE_Time_Value &max_wait_time); - virtual int alertable_handle_events (ACE_Time_Value &max_wait_time); - - // = Event handling control. - - /** - * Return the status of Reactor. If this function returns 0, the reactor is - * actively handling events. If it returns non-zero, <handling_events> and - * <handle_alertable_events> return -1 immediately. - */ - virtual int deactivated (void); - - /** - * Control whether the Reactor will handle any more incoming events or not. - * If <do_stop> == 1, the Reactor will be disabled. By default, a reactor - * is in active state and can be deactivated/reactived as wish. - */ - virtual void deactivate (int do_stop); - - // = Register and remove <ACE_Event_Handler>s. - /** - * Register a <eh> with a particular <mask>. Note that the - * <Select_Reactor> will call <ACE_Event_Handler::get_handle> to - * extract the underlying I/O handle. - */ - virtual int register_handler (ACE_Event_Handler *eh, - ACE_Reactor_Mask mask); - - /** - * Register a <eh> with a particular <mask>. Note that since the - * <handle> is given the Select_Reactor will *not* call - * <ACE_Event_Handler::get_handle> to extract the underlying I/O - * handle. - */ - virtual int register_handler (ACE_HANDLE handle, - ACE_Event_Handler *eh, - ACE_Reactor_Mask mask); - -#if defined (ACE_WIN32) - - // Originally this interface was available for all platforms, but - // because ACE_HANDLE is an int on non-Win32 platforms, compilers - // are not able to tell the difference between - // register_handler(ACE_Event_Handler*,ACE_Reactor_Mask) and - // register_handler(ACE_Event_Handler*,ACE_HANDLE). Therefore, we - // have restricted this method to Win32 only. - - /// Not implemented. - virtual int register_handler (ACE_Event_Handler *event_handler, - ACE_HANDLE event_handle = ACE_INVALID_HANDLE); - -#endif /* ACE_WIN32 */ - - /// Not implemented. - virtual int register_handler (ACE_HANDLE event_handle, - ACE_HANDLE io_handle, - ACE_Event_Handler *event_handler, - ACE_Reactor_Mask mask); - - /// Register <eh> with all the <handles> in the <Handle_Set>. - virtual int register_handler (const ACE_Handle_Set &handles, - ACE_Event_Handler *eh, - ACE_Reactor_Mask mask); - - /** - * Register <new_sh> to handle the signal <signum> using the - * <new_disp>. Returns the <old_sh> that was previously registered - * (if any), along with the <old_disp> of the signal handler. - */ - virtual int register_handler (int signum, - ACE_Event_Handler *new_sh, - ACE_Sig_Action *new_disp = 0, - ACE_Event_Handler **old_sh = 0, - ACE_Sig_Action *old_disp = 0); - - /// Registers <new_sh> to handle a set of signals <sigset> using the - /// <new_disp>. - virtual int register_handler (const ACE_Sig_Set &sigset, - ACE_Event_Handler *new_sh, - ACE_Sig_Action *new_disp = 0); - - /** - * Removes the <mask> binding of <eh> from the Select_Reactor. If - * there are no more bindings for this <eh> then it is removed from - * the Select_Reactor. Note that the Select_Reactor will call - * <ACE_Event_Handler::get_handle> to extract the underlying I/O - * handle. - */ - virtual int remove_handler (ACE_Event_Handler *eh, - ACE_Reactor_Mask mask); - - /** - * Removes the <mask> bind of <Event_Handler> whose handle is - * <handle> from the Select_Reactor. If there are no more bindings - * for this <eh> then it is removed from the Select_Reactor. - */ - virtual int remove_handler (ACE_HANDLE handle, - ACE_Reactor_Mask); - - /** - * Removes all the <mask> bindings for handles in the <handle_set> - * bind of <Event_Handler>. If there are no more bindings for any - * of these handlers then they are removed from the Select_Reactor. - */ - virtual int remove_handler (const ACE_Handle_Set &handle_set, - ACE_Reactor_Mask); - - /** - * Remove the ACE_Event_Handler currently associated with <signum>. - * <sigkey> is ignored in this implementation since there is only - * one instance of a signal handler. Install the new disposition - * (if given) and return the previous disposition (if desired by the - * caller). Returns 0 on success and -1 if <signum> is invalid. - */ - virtual int remove_handler (int signum, - ACE_Sig_Action *new_disp, - ACE_Sig_Action *old_disp = 0, - int sigkey = -1); - - /// Calls <remove_handler> for every signal in <sigset>. - virtual int remove_handler (const ACE_Sig_Set &sigset); - - // = Suspend and resume Handlers. - - /// Temporarily suspend the <Event_Handler> associated with <eh>. - virtual int suspend_handler (ACE_Event_Handler *eh); - - /// Temporarily suspend the <Event_Handler> associated with <handle>. - virtual int suspend_handler (ACE_HANDLE handle); - - /// Suspend all <handles> in handle set temporarily. - virtual int suspend_handler (const ACE_Handle_Set &handles); - - /// Suspend all the <Event_Handlers> in the Select_Reactor. - virtual int suspend_handlers (void); - - /// Resume a temporarily suspend <Event_Handler> associated with - /// <eh>. - virtual int resume_handler (ACE_Event_Handler *eh); - - /// Resume a temporarily suspended <Event_Handler> associated with - /// <handle>. - virtual int resume_handler (ACE_HANDLE handle); - - /// Resume all <handles> in handle set. - virtual int resume_handler (const ACE_Handle_Set &handles); - - /// Resume all the <Event_Handlers> in the Select_Reactor. - virtual int resume_handlers (void); - - /** - * Return 1 if we any event associations were made by the reactor - * for the handles that it waits on, 0 otherwise. Since the - * Select_Reactor does not do any event associations, this function - * always return 0. - */ - virtual int uses_event_associations (void); - - // = Timer management. - /** - * Schedule an ACE_Event_Handler that will expire after an amount - * of time. The return value of this method, a timer_id value, - * uniquely identifies the event_handler in the ACE_Reactor's - * internal list of timers. - * This timer_id value can be used to cancel the timer - * with the cancel_timer() call. - * - * @see cancel_timer() - * @see reset_timer_interval() - * - * @param event_handler event handler to schedule on reactor - * @param arg argument passed to the handle_timeout() method of event_handler - * @param delta time interval after which the timer will expire - * @param interval time interval after which the timer will be automatically rescheduled - * @return -1 on failure, a timer_id value on success - */ - virtual long schedule_timer (ACE_Event_Handler *, - const void *arg, - const ACE_Time_Value &delay, - const ACE_Time_Value &interval = ACE_Time_Value::zero); - - /** - * Resets the interval of the timer represented by <timer_id> to - * <interval>, which is specified in relative time to the current - * <gettimeofday>. If <interval> is equal to - * <ACE_Time_Value::zero>, the timer will become a non-rescheduling - * timer. Returns 0 if successful, -1 if not. - */ - virtual int reset_timer_interval (long timer_id, - const ACE_Time_Value &interval); - - /** - * Cancel all <event_handlers> that match the address of - * <event_handler>. If <dont_call_handle_close> is 0 then the - * <handle_close> method of <event_handler> will be invoked. - * Returns number of handler's cancelled. - */ - virtual int cancel_timer (ACE_Event_Handler *event_handler, - int dont_call_handle_close = 1); - - /** - * Cancel the single <ACE_Event_Handler> that matches the <timer_id> - * value (which was returned from the <schedule> method). If arg is - * non-NULL then it will be set to point to the ``magic cookie'' - * argument passed in when the <Event_Handler> was registered. This - * makes it possible to free up the memory and avoid memory leaks. - * If <dont_call_handle_close> is 0 then the <handle_close> method - * of <event_handler> will be invoked. Returns 1 if cancellation - * succeeded and 0 if the <timer_id> wasn't found. - */ - virtual int cancel_timer (long timer_id, - const void **arg = 0, - int dont_call_handle_close = 1); - - // = High-level Event_Handler scheduling operations - - /// ADD the dispatch MASK "bit" bound with the <eh> and the <mask>. - virtual int schedule_wakeup (ACE_Event_Handler *eh, - ACE_Reactor_Mask mask); - - /// ADD the dispatch MASK "bit" bound with the <handle> and the <mask>. - virtual int schedule_wakeup (ACE_HANDLE handle, - ACE_Reactor_Mask mask); - - /// CLR the dispatch MASK "bit" bound with the <eh> and the <mask>. - virtual int cancel_wakeup (ACE_Event_Handler *eh, - ACE_Reactor_Mask mask); - - /// CLR the dispatch MASK "bit" bound with the <handle> and the <mask>. - virtual int cancel_wakeup (ACE_HANDLE handle, - ACE_Reactor_Mask mask); - - // = Notification methods. - /** - * Called by a thread when it wants to unblock the Select_Reactor. - * This wakeups the <ACE_Select_Reactor> if currently blocked in - * <select>/<poll>. Pass over both the <Event_Handler> *and* the - * <mask> to allow the caller to dictate which <Event_Handler> - * method the <Select_Reactor> will invoke. The <ACE_Time_Value> - * indicates how long to blocking trying to notify the - * <Select_Reactor>. If <timeout> == 0, the caller will block until - * action is possible, else will wait until the relative time - * specified in *<timeout> elapses). - */ - virtual int notify (ACE_Event_Handler * = 0, - ACE_Reactor_Mask = ACE_Event_Handler::EXCEPT_MASK, - ACE_Time_Value * = 0); - - /** - * Set the maximum number of times that the - * <ACE_Select_Reactor_Notify::handle_input> method will iterate and - * dispatch the <ACE_Event_Handlers> that are passed in via the - * notify pipe before breaking out of its <recv> loop. By default, - * this is set to -1, which means "iterate until the pipe is empty." - * Setting this to a value like "1 or 2" will increase "fairness" - * (and thus prevent starvation) at the expense of slightly higher - * dispatching overhead. - */ - virtual void max_notify_iterations (int); - - /** - * Get the maximum number of times that the - * <ACE_Select_Reactor_Notify::handle_input> method will iterate and - * dispatch the <ACE_Event_Handlers> that are passed in via the - * notify pipe before breaking out of its <recv> loop. - */ - virtual int max_notify_iterations (void); - - /// Get the existing restart value. - virtual int restart (void); - - /// Set a new value for restart and return the original value. - virtual int restart (int r); - - /// Set position that the main ACE_Select_Reactor thread is requeued in the - /// list of waiters during a <notify> callback. - virtual void requeue_position (int); - - /// Get position that the main ACE_Select_Reactor thread is requeued in the - /// list of waiters during a <notify> callback. - virtual int requeue_position (void); - - // = Low-level wait_set mask manipulation methods. - /// GET/SET/ADD/CLR the dispatch mask "bit" bound with the <eh> and - /// <mask>. - virtual int mask_ops (ACE_Event_Handler *eh, - ACE_Reactor_Mask mask, - int ops); - - /// GET/SET/ADD/CLR the dispatch MASK "bit" bound with the <handle> - /// and <mask>. - virtual int mask_ops (ACE_HANDLE handle, - ACE_Reactor_Mask mask, - int ops); - - // = Low-level ready_set mask manipulation methods. - /// GET/SET/ADD/CLR the ready "bit" bound with the <eh> and <mask>. - virtual int ready_ops (ACE_Event_Handler *eh, - ACE_Reactor_Mask mask, - int ops); - - /// GET/SET/ADD/CLR the ready "bit" bound with the <handle> and <mask>. - virtual int ready_ops (ACE_HANDLE handle, - ACE_Reactor_Mask, - int ops); - - /// Wake up all threads in waiting in the event loop - virtual void wakeup_all_threads (void); - - // = Only the owner thread can perform a <handle_events>. - - /// Set the new owner of the thread and return the old owner. - virtual int owner (ACE_thread_t n_id, ACE_thread_t *o_id = 0); - - /// Return the current owner of the thread. - virtual int owner (ACE_thread_t *); - - // = Miscellaneous Handler operations. - /** - * Check to see if <handle> is associated with a valid Event_Handler - * bound to <mask>. Return the <eh> associated with this <handler> - * if <eh> != 0. - */ - virtual int handler (ACE_HANDLE handle, - ACE_Reactor_Mask mask, - ACE_Event_Handler **eh = 0); - - /** - * Check to see if <signum> is associated with a valid Event_Handler - * bound to a signal. Return the <eh> associated with this - * <handler> if <eh> != 0. - */ - virtual int handler (int signum, - ACE_Event_Handler ** = 0); - - /// Returns true if we've been successfully initialized, else false. - virtual int initialized (void); - - /// Returns the current size of the Reactor's internal descriptor - /// table. - virtual size_t size (void) const; - - /** - * Returns a reference to the <ACE_Select_Reactor_Token> that is - * used to serialize the internal Select_Reactor's processing logic. - * This can be useful for situations where you need to avoid - * deadlock efficiently when <ACE_Event_Handlers> are used in - * multiple threads. - */ - virtual ACE_Lock &lock (void); - - /// Dump the state of an object. - virtual void dump (void) const; - - /// Declare the dynamic allocation hooks. - ACE_ALLOC_HOOK_DECLARE; - -protected: - // = Internal methods that do the actual work. - - // All of these methods assume that the <Select_Reactor>'s token - // lock is held by the public methods that call down to them. - - /// Do the work of actually binding the <handle> and <eh> with the - /// <mask>. - virtual int register_handler_i (ACE_HANDLE handle, - ACE_Event_Handler *eh, - ACE_Reactor_Mask mask); - - /// Register a set of <handles>. - virtual int register_handler_i (const ACE_Handle_Set &handles, - ACE_Event_Handler *handler, - ACE_Reactor_Mask mask); - - /// Do the work of actually unbinding the <handle> and <eh> with the - /// <mask>. - virtual int remove_handler_i (ACE_HANDLE handle, - ACE_Reactor_Mask); - - /// Remove a set of <handles>. - virtual int remove_handler_i (const ACE_Handle_Set &handles, - ACE_Reactor_Mask); - - /// Suspend the <Event_Handler> associated with <handle> - virtual int suspend_i (ACE_HANDLE handle); - - /// Check to see if the <Event_Handler> associated with <handle> is - /// suspended. Returns 0 if not, 1 if so. - virtual int is_suspended_i (ACE_HANDLE handle); - - /// Resume the <Event_Handler> associated with <handle> - virtual int resume_i (ACE_HANDLE handle); - - /// Implement the public <handler> method. - virtual int handler_i (ACE_HANDLE handle, - ACE_Reactor_Mask, - ACE_Event_Handler ** = 0); - - /// Implement the public <handler> method. - virtual int handler_i (int signum, ACE_Event_Handler ** = 0); - - /** - * Check if there are any HANDLEs enabled in the <ready_set_>, and - * if so, update the <handle_set> and return the number ready. If - * there aren't any HANDLEs enabled return 0. - */ - virtual int any_ready (ACE_Select_Reactor_Handle_Set &handle_set); - - /// Implement the <any_ready> method, assuming that the Sig_Guard is - /// beign held - virtual int any_ready_i (ACE_Select_Reactor_Handle_Set &handle_set); - - /// Take corrective action when errors occur. - virtual int handle_error (void); - - /// Make sure the handles are all valid. - virtual int check_handles (void); - - /// Wait for events to occur. - virtual int wait_for_multiple_events (ACE_Select_Reactor_Handle_Set &, - ACE_Time_Value *); - - // = Dispatching methods. - - /** - * Template Method that dispatches <ACE_Event_Handler>s for time - * events, I/O events, and signal events. Returns the total number - * of <ACE_Event_Handler>s that were dispatched or -1 if something - * goes wrong. - */ - virtual int dispatch (int nfound, - ACE_Select_Reactor_Handle_Set &); - - /** - * Dispatch all timer handlers that have expired. Returns -1 if the - * state of the <wait_set_> has changed, else 0. - * <number_dispatched> is set to the number of timer handlers - * dispatched. - */ - virtual int dispatch_timer_handlers (int &number_dispatched); - - /** - * Dispatch any notification handlers. Returns -1 if the state of - * the <wait_set_> has changed, else returns number of handlers - * notified. - */ - virtual int dispatch_notification_handlers (ACE_Select_Reactor_Handle_Set &dispatch_set, - int &number_of_active_handles, - int &number_of_handlers_dispatched); - - /** - * Dispatch all the input/output/except handlers that are enabled in - * the <dispatch_set>. Updates <number_of_active_handles> and - * <number_of_handlers_dispatched> according to the behavior of the - * number Returns -1 if the state of the <wait_set_> has changed, - * else 0. - */ - virtual int dispatch_io_handlers (ACE_Select_Reactor_Handle_Set &dispatch_set, - int &number_of_active_handles, - int &number_of_handlers_dispatched); - - /** - * Factors the dispatching of an io handle set (each WRITE, EXCEPT - * or READ set of handles). It updates the - * <number_of_handlers_dispatched> and invokes this->notify_handle - * for all the handles in <dispatch_set> using the <mask>, - * <ready_set> and <callback> parameters. Must return -1 if - * this->state_changed otherwise it must return 0. - */ - virtual int dispatch_io_set (int number_of_active_handles, - int &number_of_handlers_dispatched, - int mask, - ACE_Handle_Set& dispatch_mask, - ACE_Handle_Set& ready_mask, - ACE_EH_PTMF callback); - - /// Notify the appropriate <callback> in the context of the <eh> - /// associated with <handle> that a particular event has occurred. - virtual void notify_handle (ACE_HANDLE handle, - ACE_Reactor_Mask mask, - ACE_Handle_Set &, - ACE_Event_Handler *eh, - ACE_EH_PTMF callback); - - /// Enqueue ourselves into the list of waiting threads at the - /// appropriate point specified by <requeue_position_>. - virtual void renew (void); - - /// Synchronization token for the MT_SAFE ACE_Select_Reactor. - ACE_SELECT_REACTOR_TOKEN token_; - - /// Adapter used to return internal lock to outside world. - ACE_Lock_Adapter<ACE_SELECT_REACTOR_TOKEN> lock_adapter_; - - /// Release the token lock when a Win32 structured exception occurs. - int release_token (void); - - /// Stops the VC++ compiler from bitching about exceptions and destructors - int handle_events_i (ACE_Time_Value *max_wait_time = 0); - - /// This flag is used to keep track of whether we are actively handling - /// events or not. - sig_atomic_t deactivated_; - - /** - * If 0 then the Reactor will not mask the signals during the event - * dispatching. This is useful for applications that do not - * register any signal handlers and want to reduce the overhead - * introduce by the kernel level locks required to change the mask. - */ - int mask_signals_; - -private: - /// Deny access since member-wise won't work... - ACE_UNIMPLEMENTED_FUNC (ACE_Select_Reactor_T (const ACE_Select_Reactor_T<ACE_SELECT_REACTOR_TOKEN> &)) - ACE_UNIMPLEMENTED_FUNC (ACE_Select_Reactor_T<ACE_SELECT_REACTOR_TOKEN> &operator= (const ACE_Select_Reactor_T<ACE_SELECT_REACTOR_TOKEN> &) ) -}; - -// @@ The latest version of SunCC can't grok the code if we put inline -// function here. Therefore, we temporarily disable the code here. -// We shall turn this back on once we know the problem gets fixed. -#if 0 // defined (__ACE_INLINE__) -#include "ace/Select_Reactor_T.i" -#endif /* __ACE_INLINE__ */ - -#if defined (ACE_TEMPLATES_REQUIRE_SOURCE) -#include "ace/Select_Reactor_T.cpp" -#endif /* ACE_TEMPLATES_REQUIRE_SOURCE */ - -#if defined (ACE_TEMPLATES_REQUIRE_PRAGMA) -#pragma implementation ("Select_Reactor_T.cpp") -#endif /* ACE_TEMPLATES_REQUIRE_PRAGMA */ - -#include "ace/post.h" -#endif /* ACE_SELECT_REACTOR_T_H */ |