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authorcoryan <coryan@ae88bc3d-4319-0410-8dbf-d08b4c9d3795>2000-11-01 22:17:39 +0000
committercoryan <coryan@ae88bc3d-4319-0410-8dbf-d08b4c9d3795>2000-11-01 22:17:39 +0000
commit53284e215e3d3351a7d7e9c4b68f14b427fb4377 (patch)
tree97236ece363cff48fd287c780db4290da39b02cb /ace/Reactor.h
parent7b7c52ad2abd228138ba1a948d5e28bf6dc3b880 (diff)
downloadATCD-53284e215e3d3351a7d7e9c4b68f14b427fb4377.tar.gz
ChangeLogTag:Wed Nov 1 14:11:48 2000 Carlos O'Ryan <coryan@uci.edu>
Diffstat (limited to 'ace/Reactor.h')
-rw-r--r--ace/Reactor.h610
1 files changed, 338 insertions, 272 deletions
diff --git a/ace/Reactor.h b/ace/Reactor.h
index 0462732b0e3..aad4856882e 100644
--- a/ace/Reactor.h
+++ b/ace/Reactor.h
@@ -1,18 +1,15 @@
/* -*- C++ -*- */
-// $Id$
-
-// ============================================================================
-//
-// = LIBRARY
-// ace
-//
-// = FILENAME
-// Reactor.h
-//
-// = AUTHOR
-// Irfan Pyarali
-//
-// ============================================================================
+
+//=============================================================================
+/**
+ * @file Reactor.h
+ *
+ * $Id$
+ *
+ * @author Irfan Pyarali
+ */
+//=============================================================================
+
#ifndef ACE_REACTOR_H
#define ACE_REACTOR_H
@@ -40,528 +37,597 @@ class ACE_Reactor_Impl;
// forward declaration will be useful here
#include "ace/Signal.h"
+/**
+ * @class ACE_Reactor
+ *
+ * @brief The resposiblility of this class is to forward all methods to
+ * its delegation/implementation class, e.g.,
+ * <ACE_Select_Reactor> or <ACE_WFMO_Reactor>.
+ */
class ACE_Export ACE_Reactor
{
- // = TITLE
- // The resposiblility of this class is to forward all methods to
- // its delegation/implementation class, e.g.,
- // <ACE_Select_Reactor> or <ACE_WFMO_Reactor>.
public:
+ /// Operations on the "ready" mask and the "dispatch" mask.
enum
{
- // = Operations on the "ready" mask and the "dispatch" mask.
+ /// Retrieve current value of the the "ready" mask or the
+ /// "dispatch" mask.
GET_MASK = 1,
- // Retrieve current value of the the "ready" mask or the
- // "dispatch" mask.
+ /// Set value of bits to new mask (changes the entire mask).
SET_MASK = 2,
- // Set value of bits to new mask (changes the entire mask).
+ /// Bitwise "or" the value into the mask (only changes enabled
+ /// bits).
ADD_MASK = 3,
- // Bitwise "or" the value into the mask (only changes enabled
- // bits).
+ /// Bitwise "and" the negation of the value out of the mask (only
+ /// changes enabled bits).
CLR_MASK = 4
- // Bitwise "and" the negation of the value out of the mask (only
- // changes enabled bits).
};
+ /**
+ * You can add a hook to various run_event methods and the hook will
+ * be called after handling every reactor event. If this function
+ * returns 0, run_reactor_event_loop will check for the return value of
+ * handle_event. If it is -1, the the run_reactor_event_loop will return
+ * (pre-maturely.)
+ */
typedef int (*REACTOR_EVENT_HOOK)(void*);
- // You can add a hook to various run_event methods and the hook will
- // be called after handling every reactor event. If this function
- // returns 0, run_reactor_event_loop will check for the return value of
- // handle_event. If it is -1, the the run_reactor_event_loop will return
- // (pre-maturely.)
+ /// Get pointer to a process-wide <ACE_Reactor>.
static ACE_Reactor *instance (void);
- // Get pointer to a process-wide <ACE_Reactor>.
+ /**
+ * Set pointer to a process-wide <ACE_Reactor> and return existing
+ * pointer. If <delete_reactor> != 0 then we'll delete the Reactor
+ * at destruction time.
+ */
static ACE_Reactor *instance (ACE_Reactor *,
int delete_reactor = 0);
- // Set pointer to a process-wide <ACE_Reactor> and return existing
- // pointer. If <delete_reactor> != 0 then we'll delete the Reactor
- // at destruction time.
+ /// Delete the dynamically allocated Singleton
static void close_singleton (void);
- // Delete the dynamically allocated Singleton
// = Singleton reactor event loop management methods.
// Note that these method ONLY work on the "Singleton Reactor,"
// i.e., the one returned from <ACE_Reactor::instance>.
+ /**
+ * Run the event loop until the
+ * <ACE_Reactor::handle_events/ACE_Reactor::alertable_handle_events>
+ * method returns -1 or the <end_event_loop> method is invoked.
+ * Note that this method can only be used by the singleton
+ * <ACE_Reactor::instance>. Thus, to run another reactor use
+ * <ACE_Reactor::run_reactor_event_loop>.
+ */
static int run_event_loop (void);
static int run_alertable_event_loop (void);
- // Run the event loop until the
- // <ACE_Reactor::handle_events/ACE_Reactor::alertable_handle_events>
- // method returns -1 or the <end_event_loop> method is invoked.
- // Note that this method can only be used by the singleton
- // <ACE_Reactor::instance>. Thus, to run another reactor use
- // <ACE_Reactor::run_reactor_event_loop>.
+ /**
+ * Run the event loop until the <ACE_Reactor::handle_events> or
+ * <ACE_Reactor::alertable_handle_events> methods returns -1, the
+ * <end_event_loop> method is invoked, or the <ACE_Time_Value>
+ * expires. Note that this method can only be used by the singleton
+ * <ACE_Reactor::instance>. Thus, to run another reactor use
+ * <ACE_Reactor::run_reactor_event_loop>.
+ */
static int run_event_loop (ACE_Time_Value &tv);
static int run_alertable_event_loop (ACE_Time_Value &tv);
- // Run the event loop until the <ACE_Reactor::handle_events> or
- // <ACE_Reactor::alertable_handle_events> methods returns -1, the
- // <end_event_loop> method is invoked, or the <ACE_Time_Value>
- // expires. Note that this method can only be used by the singleton
- // <ACE_Reactor::instance>. Thus, to run another reactor use
- // <ACE_Reactor::run_reactor_event_loop>.
+ /**
+ * Instruct the <ACE_Reactor::instance> to terminate its event loop
+ * and notifies the <ACE_Reactor::instance> so that it can wake up
+ * and close down gracefully. Note that this method can only be
+ * used by the singleton <ACE_Reactor::instance>. Thus, to
+ * terminate another reactor, use
+ * <ACE_Reactor::end_reactor_event_loop>.
+ */
static int end_event_loop (void);
- // Instruct the <ACE_Reactor::instance> to terminate its event loop
- // and notifies the <ACE_Reactor::instance> so that it can wake up
- // and close down gracefully. Note that this method can only be
- // used by the singleton <ACE_Reactor::instance>. Thus, to
- // terminate another reactor, use
- // <ACE_Reactor::end_reactor_event_loop>.
+ /**
+ * Report if the <ACE_Reactor::instance>'s event loop is finished.
+ * Note that this method can only be used by the singleton
+ * <ACE_Reactor::instance>. Thus, to check another reactor use
+ * <ACE_Reactor::reactor_event_loop_done>.
+ */
static int event_loop_done (void);
- // Report if the <ACE_Reactor::instance>'s event loop is finished.
- // Note that this method can only be used by the singleton
- // <ACE_Reactor::instance>. Thus, to check another reactor use
- // <ACE_Reactor::reactor_event_loop_done>.
+ /**
+ * Resets the <ACE_Reactor::end_event_loop_> static so that the
+ * <run_event_loop> method can be restarted. Note that this method
+ * can only be used by the singleton <ACE_Reactor::instance>. Thus,
+ * to reset another reactor use
+ * <ACE_Reactor::reset_reactor_event_loop>.
+ */
static void reset_event_loop (void);
- // Resets the <ACE_Reactor::end_event_loop_> static so that the
- // <run_event_loop> method can be restarted. Note that this method
- // can only be used by the singleton <ACE_Reactor::instance>. Thus,
- // to reset another reactor use
- // <ACE_Reactor::reset_reactor_event_loop>.
+ /**
+ * The singleton reactor is used by the <ACE_Service_Config>.
+ * Therefore, we must check for the reconfiguration request and
+ * handle it after handling an event.
+ */
static int check_reconfiguration (void *);
- // The singleton reactor is used by the <ACE_Service_Config>.
- // Therefore, we must check for the reconfiguration request and
- // handle it after handling an event.
// = Reactor event loop management methods.
// These methods work with an instance of a reactor.
+ /**
+ * Run the event loop until the
+ * <ACE_Reactor::handle_events/ACE_Reactor::alertable_handle_events>
+ * method returns -1 or the <end_event_loop> method is invoked.
+ */
virtual int run_reactor_event_loop (REACTOR_EVENT_HOOK = 0);
virtual int run_alertable_reactor_event_loop (REACTOR_EVENT_HOOK = 0);
- // Run the event loop until the
- // <ACE_Reactor::handle_events/ACE_Reactor::alertable_handle_events>
- // method returns -1 or the <end_event_loop> method is invoked.
+ /**
+ * Run the event loop until the <ACE_Reactor::handle_events> or
+ * <ACE_Reactor::alertable_handle_events> methods returns -1, the
+ * <end_event_loop> method is invoked, or the <ACE_Time_Value>
+ * expires.
+ */
virtual int run_reactor_event_loop (ACE_Time_Value &tv,
REACTOR_EVENT_HOOK = 0);
virtual int run_alertable_reactor_event_loop (ACE_Time_Value &tv,
REACTOR_EVENT_HOOK = 0);
- // Run the event loop until the <ACE_Reactor::handle_events> or
- // <ACE_Reactor::alertable_handle_events> methods returns -1, the
- // <end_event_loop> method is invoked, or the <ACE_Time_Value>
- // expires.
+ /**
+ * Instruct the <ACE_Reactor::instance> to terminate its event loop
+ * and notifies the <ACE_Reactor::instance> so that it can wake up
+ * and close down gracefully.
+ */
virtual int end_reactor_event_loop (void);
- // Instruct the <ACE_Reactor::instance> to terminate its event loop
- // and notifies the <ACE_Reactor::instance> so that it can wake up
- // and close down gracefully.
+ /// Report if the <ACE_Reactor::instance>'s event loop is finished.
virtual int reactor_event_loop_done (void);
- // Report if the <ACE_Reactor::instance>'s event loop is finished.
+ /// Resets the <ACE_Reactor::end_event_loop_> static so that the
+ /// <run_event_loop> method can be restarted.
virtual void reset_reactor_event_loop (void);
- // Resets the <ACE_Reactor::end_event_loop_> static so that the
- // <run_event_loop> method can be restarted.
+ /**
+ * Create the Reactor using <implementation>. The flag
+ * <delete_implementation> tells the Reactor whether or not to
+ * delete the <implementation> on destruction.
+ */
ACE_Reactor (ACE_Reactor_Impl *implementation = 0,
int delete_implementation = 0);
- // Create the Reactor using <implementation>. The flag
- // <delete_implementation> tells the Reactor whether or not to
- // delete the <implementation> on destruction.
+ /// Close down and release all resources.
virtual ~ACE_Reactor (void);
- // Close down and release all resources.
+ /**
+ * Initialize the <ACE_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.
+ */
virtual int open (size_t max_number_of_handles,
int restart = 0,
ACE_Sig_Handler *signal_handler = 0,
ACE_Timer_Queue *timer_queue = 0);
- // Initialize the <ACE_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.
+ /// Use a user specified signal handler instead.
virtual int set_sig_handler (ACE_Sig_Handler *signal_handler);
- // Use a user specified signal handler instead.
// = 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.
+ /// Set a user-specified timer queue.
+ /// Return the current <ACE_Timer_Queue>.
virtual int timer_queue (ACE_Timer_Queue *tq);
- // Set a user-specified timer queue.
virtual ACE_Timer_Queue *timer_queue (void) const;
- // Return the current <ACE_Timer_Queue>.
+ /// Close down and release all resources.
virtual int close (void);
- // Close down and release all resources.
// = 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);
- // 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".
+ /**
+ * This event loop driver blocks for up to <max_wait_time> before
+ * returning. It will return earlier if 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 timers and I/O <ACE_Event_Handler>s
+ * that were dispatched, 0 if the <max_wait_time> elapsed without
+ * dispatching any handlers, or -1 if an error occurs.
+ *
+ * The only difference between <alertable_handle_events> and
+ * <handle_events> is that in the alertable case, the eventloop will
+ * return when the system queues an I/O completion routine or an
+ * Asynchronous Procedure Call.
+ */
virtual int handle_events (ACE_Time_Value *max_wait_time = 0);
virtual int alertable_handle_events (ACE_Time_Value *max_wait_time = 0);
- // This event loop driver blocks for up to <max_wait_time> before
- // returning. It will return earlier if 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 timers and I/O <ACE_Event_Handler>s
- // that were dispatched, 0 if the <max_wait_time> elapsed without
- // dispatching any handlers, or -1 if an error occurs.
- //
- // The only difference between <alertable_handle_events> and
- // <handle_events> is that in the alertable case, the eventloop will
- // return when the system queues an I/O completion routine or an
- // Asynchronous Procedure Call.
+ /**
+ * This method is just like the one above, except the
+ * <max_wait_time> value is a reference and can therefore never be
+ * NULL.
+ *
+ * The only difference between <alertable_handle_events> and
+ * <handle_events> is that in the alertable case, the eventloop will
+ * return when the system queues an I/O completion routine or an
+ * Asynchronous Procedure Call.
+ */
virtual int handle_events (ACE_Time_Value &max_wait_time);
virtual int alertable_handle_events (ACE_Time_Value &max_wait_time);
- // This method is just like the one above, except the
- // <max_wait_time> value is a reference and can therefore never be
- // NULL.
- //
- // The only difference between <alertable_handle_events> and
- // <handle_events> is that in the alertable case, the eventloop will
- // return when the system queues an I/O completion routine or an
- // Asynchronous Procedure Call.
// = Register and remove Handlers.
+ /// Register <event_handler> with <mask>. The I/O handle will always
+ /// come from <get_handle> on the <event_handler>.
virtual int register_handler (ACE_Event_Handler *event_handler,
ACE_Reactor_Mask mask);
- // Register <event_handler> with <mask>. The I/O handle will always
- // come from <get_handle> on the <event_handler>.
+ /// Register <event_handler> with <mask>. The I/O handle is provided
+ /// through the <io_handle> parameter.
virtual int register_handler (ACE_HANDLE io_handle,
ACE_Event_Handler *event_handler,
ACE_Reactor_Mask mask);
- // Register <event_handler> with <mask>. The I/O handle is provided
- // through the <io_handle> parameter.
#if defined (ACE_WIN32)
+ /**
+ * Register an <event_handler> that will be notified when
+ * <event_handle> is signaled. Since no event mask is passed
+ * through this interface, it is assumed that the <event_handle>
+ * being passed in is an event handle and not an I/O handle.
+ *
+ * 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.
+ */
virtual int register_handler (ACE_Event_Handler *event_handler,
ACE_HANDLE event_handle = ACE_INVALID_HANDLE);
- // Register an <event_handler> that will be notified when
- // <event_handle> is signaled. Since no event mask is passed
- // through this interface, it is assumed that the <event_handle>
- // being passed in is an event handle and not an I/O handle.
- //
- // 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.
#endif /* ACE_WIN32 */
+ /**
+ * Register an <event_handler> that will be notified when
+ * <event_handle> is signaled. <mask> specifies the network events
+ * that the <event_handler> is interested in.
+ */
virtual int register_handler (ACE_HANDLE event_handle,
ACE_HANDLE io_handle,
ACE_Event_Handler *event_handler,
ACE_Reactor_Mask mask);
- // Register an <event_handler> that will be notified when
- // <event_handle> is signaled. <mask> specifies the network events
- // that the <event_handler> is interested in.
+ /// Register <event_handler> with all the <handles> in the <Handle_Set>.
virtual int register_handler (const ACE_Handle_Set &handles,
ACE_Event_Handler *event_handler,
ACE_Reactor_Mask mask);
- // Register <event_handler> with all the <handles> in the <Handle_Set>.
+ /**
+ * 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);
- // 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.
+ /// 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);
- // Registers <new_sh> to handle a set of signals <sigset> using the
- // <new_disp>.
+ /**
+ * Removes <event_handler>. Note that the I/O handle will be
+ * obtained using <get_handle> method of <event_handler> . If
+ * <mask> == <ACE_Event_Handler::DONT_CALL> then the <handle_close>
+ * method of the <event_handler> is not invoked.
+ */
virtual int remove_handler (ACE_Event_Handler *event_handler,
ACE_Reactor_Mask mask);
- // Removes <event_handler>. Note that the I/O handle will be
- // obtained using <get_handle> method of <event_handler> . If
- // <mask> == <ACE_Event_Handler::DONT_CALL> then the <handle_close>
- // method of the <event_handler> is not invoked.
+ /**
+ * Removes <handle>. If <mask> == <ACE_Event_Handler::DONT_CALL>
+ * then the <handle_close> method of the associated <event_handler>
+ * is not invoked.
+ */
virtual int remove_handler (ACE_HANDLE handle,
ACE_Reactor_Mask mask);
- // Removes <handle>. If <mask> == <ACE_Event_Handler::DONT_CALL>
- // then the <handle_close> method of the associated <event_handler>
- // is not invoked.
+ /**
+ * Removes all handles in <handle_set>. If <mask> ==
+ * <ACE_Event_Handler::DONT_CALL> then the <handle_close> method of
+ * the associated <event_handler>s is not invoked.
+ */
virtual int remove_handler (const ACE_Handle_Set &handle_set,
ACE_Reactor_Mask mask);
- // Removes all handles in <handle_set>. If <mask> ==
- // <ACE_Event_Handler::DONT_CALL> then the <handle_close> method of
- // the associated <event_handler>s is not invoked.
+ /**
+ * Remove the ACE_Event_Handler currently associated with <signum>.
+ * 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);
- // Remove the ACE_Event_Handler currently associated with <signum>.
- // 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.
+ /// Calls <remove_handler> for every signal in <sigset>.
virtual int remove_handler (const ACE_Sig_Set &sigset);
- // Calls <remove_handler> for every signal in <sigset>.
// = Suspend and resume Handlers.
+ /// Suspend <event_handler> temporarily. Use
+ /// <ACE_Event_Handler::get_handle> to get the handle.
virtual int suspend_handler (ACE_Event_Handler *event_handler);
- // Suspend <event_handler> temporarily. Use
- // <ACE_Event_Handler::get_handle> to get the handle.
+ /// Suspend <handle> temporarily.
virtual int suspend_handler (ACE_HANDLE handle);
- // Suspend <handle> temporarily.
+ /// Suspend all <handles> in handle set temporarily.
virtual int suspend_handler (const ACE_Handle_Set &handles);
- // Suspend all <handles> in handle set temporarily.
+ /// Suspend all <handles> temporarily.
virtual int suspend_handlers (void);
- // Suspend all <handles> temporarily.
+ /// Resume <event_handler>. Use <ACE_Event_Handler::get_handle> to
+ /// get the handle.
virtual int resume_handler (ACE_Event_Handler *event_handler);
- // Resume <event_handler>. Use <ACE_Event_Handler::get_handle> to
- // get the handle.
+ /// Resume <handle>.
virtual int resume_handler (ACE_HANDLE handle);
- // Resume <handle>.
+ /// Resume all <handles> in handle set.
virtual int resume_handler (const ACE_Handle_Set &handles);
- // Resume all <handles> in handle set.
+ /// Resume all <handles>.
virtual int resume_handlers (void);
- // Resume all <handles>.
// = Timer management.
+ /**
+ * Schedule an <event_handler> that will expire after <delay> amount
+ * of time, which is specified as relative time to the current
+ * <gettimeofday>. If it expires then <arg> is passed in as the
+ * value to the <event_handler>'s <handle_timeout> callback method.
+ * If <interval> is != to <ACE_Time_Value::zero> then it is used to
+ * reschedule the <event_handler> automatically, also specified
+ * using relative time. This method returns a <timer_id> that
+ * uniquely identifies the <event_handler> in an internal list.
+ * This <timer_id> can be used to cancel an <event_handler> before
+ * it expires. The cancellation ensures that <timer_ids> are unique
+ * up to values of greater than 2 billion timers. As long as timers
+ * don't stay around longer than this there should be no problems
+ * with accidentally deleting the wrong timer. Returns -1 on
+ * failure (which is guaranteed never to be a valid <timer_id>.
+ */
virtual long schedule_timer (ACE_Event_Handler *event_handler,
const void *arg,
const ACE_Time_Value &delta,
const ACE_Time_Value &interval = ACE_Time_Value::zero);
- // Schedule an <event_handler> that will expire after <delay> amount
- // of time, which is specified as relative time to the current
- // <gettimeofday>. If it expires then <arg> is passed in as the
- // value to the <event_handler>'s <handle_timeout> callback method.
- // If <interval> is != to <ACE_Time_Value::zero> then it is used to
- // reschedule the <event_handler> automatically, also specified
- // using relative time. This method returns a <timer_id> that
- // uniquely identifies the <event_handler> in an internal list.
- // This <timer_id> can be used to cancel an <event_handler> before
- // it expires. The cancellation ensures that <timer_ids> are unique
- // up to values of greater than 2 billion timers. As long as timers
- // don't stay around longer than this there should be no problems
- // with accidentally deleting the wrong timer. Returns -1 on
- // failure (which is guaranteed never to be a valid <timer_id>.
-
- virtual int reset_timer_interval (long timer_id,
+
+ /**
+ * 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);
- // 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.
+ /// Cancel all <Event_Handler>s that match the address of
+ /// <event_handler>. Returns number of handlers cancelled.
virtual int cancel_timer (ACE_Event_Handler *event_handler,
int dont_call_handle_close = 1);
- // Cancel all <Event_Handler>s that match the address of
- // <event_handler>. Returns number of handlers cancelled.
+ /**
+ * Cancel the single <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.
+ * 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);
- // Cancel the single <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.
- // Returns 1 if cancellation succeeded and 0 if the <timer_id>
- // wasn't found.
// = High-level Event_Handler scheduling operations
+ /// Add <masks_to_be_added> to the <event_handler>'s entry.
+ /// <event_handler> must already have been registered.
virtual int schedule_wakeup (ACE_Event_Handler *event_handler,
ACE_Reactor_Mask masks_to_be_added);
- // Add <masks_to_be_added> to the <event_handler>'s entry.
- // <event_handler> must already have been registered.
+ /// Add <masks_to_be_added> to the <handle>'s entry. <event_handler>
+ /// associated with <handle> must already have been registered.
virtual int schedule_wakeup (ACE_HANDLE handle,
ACE_Reactor_Mask masks_to_be_added);
- // Add <masks_to_be_added> to the <handle>'s entry. <event_handler>
- // associated with <handle> must already have been registered.
+ /// Clear <masks_to_be_cleared> from the <event_handler>'s entry.
virtual int cancel_wakeup (ACE_Event_Handler *event_handler,
ACE_Reactor_Mask masks_to_be_cleared);
- // Clear <masks_to_be_cleared> from the <event_handler>'s entry.
+ /// Clear <masks_to_be_cleared> from the <handle>'s entry.
virtual int cancel_wakeup (ACE_HANDLE handle,
ACE_Reactor_Mask masks_to_be_cleared);
- // Clear <masks_to_be_cleared> from the <handle>'s entry.
// = Notification methods.
+ /**
+ * Notify <event_handler> of <mask> event. The <ACE_Time_Value>
+ * indicates how long to blocking trying to notify. 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 *event_handler = 0,
ACE_Reactor_Mask mask = ACE_Event_Handler::EXCEPT_MASK,
ACE_Time_Value *tv = 0);
- // Notify <event_handler> of <mask> event. The <ACE_Time_Value>
- // indicates how long to blocking trying to notify. If <timeout> ==
- // 0, the caller will block until action is possible, else will wait
- // until the relative time specified in <timeout> elapses).
+ /**
+ * Set the maximum number of times that ACE_Reactor will
+ * iterate and dispatch the <ACE_Event_Handlers> that are passed in
+ * via the notify queue before breaking out of its
+ * <ACE_Message_Queue::dequeue> loop. By default, this is set to
+ * -1, which means "iterate until the queue 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 iterations);
- // Set the maximum number of times that ACE_Reactor will
- // iterate and dispatch the <ACE_Event_Handlers> that are passed in
- // via the notify queue before breaking out of its
- // <ACE_Message_Queue::dequeue> loop. By default, this is set to
- // -1, which means "iterate until the queue 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.
+ /**
+ * Get the maximum number of times that the ACE_Reactor will
+ * iterate and dispatch the <ACE_Event_Handlers> that are passed in
+ * via the notify queue before breaking out of its
+ * <ACE_Message_Queue::dequeue> loop.
+ */
virtual int max_notify_iterations (void);
- // Get the maximum number of times that the ACE_Reactor will
- // iterate and dispatch the <ACE_Event_Handlers> that are passed in
- // via the notify queue before breaking out of its
- // <ACE_Message_Queue::dequeue> loop.
+ /**
+ * Purge any notifications pending in this reactor for the specified
+ * <ACE_Event_Handler> object. Returns the number of notifications
+ * purged. Returns -1 on error.
+ */
virtual int purge_pending_notifications (ACE_Event_Handler * = 0);
- // Purge any notifications pending in this reactor for the specified
- // <ACE_Event_Handler> object. Returns the number of notifications
- // purged. Returns -1 on error.
// = Assorted helper methods.
-
+
+ /**
+ * Check to see if <handle> is associated with a valid Event_Handler
+ * bound to <mask>. Return the <event_handler> associated with this
+ * <handler> if <event_handler> != 0.
+ */
virtual int handler (ACE_HANDLE handle,
ACE_Reactor_Mask mask,
ACE_Event_Handler **event_handler = 0);
- // Check to see if <handle> is associated with a valid Event_Handler
- // bound to <mask>. Return the <event_handler> associated with this
- // <handler> if <event_handler> != 0.
+ /**
+ * Check to see if <signum> is associated with a valid Event_Handler
+ * bound to a signal. Return the <event_handler> associated with
+ * this <handler> if <event_handler> != 0.
+ */
virtual int handler (int signum,
ACE_Event_Handler **event_handler = 0);
- // Check to see if <signum> is associated with a valid Event_Handler
- // bound to a signal. Return the <event_handler> associated with
- // this <handler> if <event_handler> != 0.
+ /// Returns true if Reactor has been successfully initialized, else
+ /// false.
virtual int initialized (void);
- // Returns true if Reactor has been successfully initialized, else
- // false.
+ /// Returns the current size of the Reactor's internal descriptor
+ /// table.
virtual size_t size (void) const;
- // Returns the current size of the Reactor's internal descriptor
- // table.
+ /// Returns a reference to the Reactor's internal lock.
virtual ACE_Lock &lock (void);
- // Returns a reference to the Reactor's internal lock.
+ /// Wake up all threads in waiting in the event loop
virtual void wakeup_all_threads (void);
- // Wake up all threads in waiting in the event loop
+ /// Transfers ownership of Reactor to the <new_owner>.
virtual int owner (ACE_thread_t new_owner,
ACE_thread_t *old_owner = 0);
- // Transfers ownership of Reactor to the <new_owner>.
+ /// Return the ID of the "owner" thread.
virtual int owner (ACE_thread_t *owner);
- // Return the ID of the "owner" thread.
+ /// Set position of the owner thread.
virtual void requeue_position (int position);
- // Set position of the owner thread.
+ /// Get position of the owner thread.
virtual int requeue_position (void);
- // Get position of the owner thread.
+ /// Get the existing restart value.
virtual int restart (void);
- // Get the existing restart value.
-
+
+ /// Set a new value for restart and return the original value.
virtual int restart (int r);
- // Set a new value for restart and return the original value.
// = Low-level wait_set mask manipulation methods.
+ /// GET/SET/ADD/CLR the dispatch mask "bit" bound with the
+ /// <event_handler> and <mask>.
virtual int mask_ops (ACE_Event_Handler *event_handler,
ACE_Reactor_Mask mask,
int ops);
- // GET/SET/ADD/CLR the dispatch mask "bit" bound with the
- // <event_handler> and <mask>.
+ /// 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);
- // GET/SET/ADD/CLR the dispatch MASK "bit" bound with the <handle>
- // and <mask>.
// = Low-level ready_set mask manipulation methods.
+ /// GET/SET/ADD/CLR the ready "bit" bound with the <event_handler>
+ /// and <mask>.
virtual int ready_ops (ACE_Event_Handler *event_handler,
ACE_Reactor_Mask mask,
int ops);
- // GET/SET/ADD/CLR the ready "bit" bound with the <event_handler>
- // and <mask>.
+ /// GET/SET/ADD/CLR the ready "bit" bound with the <handle> and <mask>.
virtual int ready_ops (ACE_HANDLE handle,
ACE_Reactor_Mask mask,
int ops);
- // GET/SET/ADD/CLR the ready "bit" bound with the <handle> and <mask>.
+ /// Get the implementation class
virtual ACE_Reactor_Impl *implementation (void) const;
- // Get the implementation class
+ /**
+ * Returns 0, if the size of the current message has been put in
+ * <size> returns -1, if not. ACE_HANDLE allows the reactor to
+ * check if the caller is valid. Used for CLASSIX Reactor
+ * implementation.
+ */
virtual int current_info (ACE_HANDLE handle,
size_t &msg_size);
- // Returns 0, if the size of the current message has been put in
- // <size> returns -1, if not. ACE_HANDLE allows the reactor to
- // check if the caller is valid. Used for CLASSIX Reactor
- // implementation.
+ /// Return 1 if we any event associations were made by the reactor
+ /// for the handles that it waits on, 0 otherwise.
virtual int uses_event_associations (void);
- // Return 1 if we any event associations were made by the reactor
- // for the handles that it waits on, 0 otherwise.
+ /// Declare the dynamic allocation hooks.
ACE_ALLOC_HOOK_DECLARE;
- // Declare the dynamic allocation hooks.
+ /// Dump the state of the object.
void dump (void) const;
- // Dump the state of the object.
protected:
+ /// Set the implementation class.
virtual void implementation (ACE_Reactor_Impl *implementation);
- // Set the implementation class.
+ /// Delegation/implementation class that all methods will be
+ /// forwarded to.
ACE_Reactor_Impl *implementation_;
- // Delegation/implementation class that all methods will be
- // forwarded to.
+ /// Flag used to indicate whether we are responsible for cleaning up
+ /// the implementation instance
int delete_implementation_;
- // Flag used to indicate whether we are responsible for cleaning up
- // the implementation instance
+ /// Pointer to a process-wide <ACE_Reactor> singleton.
static ACE_Reactor *reactor_;
- // Pointer to a process-wide <ACE_Reactor> singleton.
+ /// Must delete the <reactor_> singleton if non-0.
static int delete_reactor_;
- // Must delete the <reactor_> singleton if non-0.
+ /// Deny access since member-wise won't work...
ACE_Reactor (const ACE_Reactor &);
ACE_Reactor &operator = (const ACE_Reactor &);
- // Deny access since member-wise won't work...
};
#if defined (__ACE_INLINE__)