ACE
6.3.3
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Adapts an ACE timer queue using a separate thread for dispatching. More...
#include <Timer_Queue_Adapters.h>
Public Types | |
typedef TQ | TIMER_QUEUE |
Trait for the underlying queue type. More... | |
Public Types inherited from ACE_Event_Handler | |
enum | { LO_PRIORITY = 0, HI_PRIORITY = 10, NULL_MASK = 0, READ_MASK = (1 << 0), WRITE_MASK = (1 << 1), EXCEPT_MASK = (1 << 2), ACCEPT_MASK = (1 << 3), CONNECT_MASK = (1 << 4), TIMER_MASK = (1 << 5), QOS_MASK = (1 << 6), GROUP_QOS_MASK = (1 << 7), SIGNAL_MASK = (1 << 8), ALL_EVENTS_MASK, RWE_MASK, DONT_CALL = (1 << 9) } |
enum | { ACE_EVENT_HANDLER_NOT_RESUMED = -1, ACE_REACTOR_RESUMES_HANDLER = 0, ACE_APPLICATION_RESUMES_HANDLER } |
typedef long | Reference_Count |
Reference count type. More... | |
Public Member Functions | |
ACE_Thread_Timer_Queue_Adapter (ACE_Thread_Manager *=ACE_Thread_Manager::instance(), TQ *timer_queue=0) | |
virtual | ~ACE_Thread_Timer_Queue_Adapter (void) |
Destructor. More... | |
long | schedule (TYPE handler, const void *act, const ACE_Time_Value &future_time, const ACE_Time_Value &interval=ACE_Time_Value::zero) |
int | cancel (long timer_id, const void **act=0) |
virtual int | svc (void) |
Runs the dispatching thread. More... | |
virtual void | deactivate (void) |
Inform the dispatching thread that it should terminate. More... | |
ACE_SYNCH_RECURSIVE_MUTEX & | mutex (void) |
Access the locking mechanism, useful for iteration. More... | |
int | timer_queue (TQ *tq) |
Set a user-specified timer queue. More... | |
TQ * | timer_queue (void) const |
Return the current <TQ>. More... | |
ACE_thread_t | thr_id (void) const |
Return the thread id of our active object. More... | |
virtual int | activate (long flags=THR_NEW_LWP|THR_JOINABLE, int n_threads=1, int force_active=0, long priority=ACE_DEFAULT_THREAD_PRIORITY, int grp_id=-1, ACE_Task_Base *task=0, ACE_hthread_t thread_handles[]=0, void *stack[]=0, size_t stack_size[]=0, ACE_thread_t thread_ids[]=0, const char *thr_name[]=0) |
Public Member Functions inherited from ACE_Task_Base | |
ACE_Task_Base (ACE_Thread_Manager *=0) | |
Constructor. More... | |
virtual | ~ACE_Task_Base (void) |
Destructor. More... | |
virtual int | open (void *args=0) |
Default ACE_Task open routine. More... | |
virtual int | close (u_long flags=0) |
Default ACE_Task close routine. More... | |
virtual int | module_closed (void) |
virtual int | put (ACE_Message_Block *, ACE_Time_Value *=0) |
Default ACE_Task put routine. More... | |
virtual int | wait (void) |
Wait for all threads running in a task to exit. More... | |
virtual int | suspend (void) |
Suspend a task. More... | |
virtual int | resume (void) |
Resume a suspended task. More... | |
int | grp_id (void) const |
Get the current group id. More... | |
void | grp_id (int) |
Set the current group id. More... | |
ACE_Thread_Manager * | thr_mgr (void) const |
Get the thread manager associated with this Task. More... | |
void | thr_mgr (ACE_Thread_Manager *) |
Set the thread manager associated with this Task. More... | |
int | is_reader (void) const |
True if queue is a reader, else false. More... | |
int | is_writer (void) const |
True if queue is a writer, else false. More... | |
size_t | thr_count (void) const |
ACE_thread_t | last_thread (void) const |
Public Member Functions inherited from ACE_Service_Object | |
ACE_Service_Object (ACE_Reactor *=0) | |
Constructor. More... | |
virtual | ~ACE_Service_Object (void) |
Destructor. More... | |
Public Member Functions inherited from ACE_Event_Handler | |
virtual | ~ACE_Event_Handler (void) |
Destructor is virtual to enable proper cleanup. More... | |
virtual ACE_HANDLE | get_handle (void) const |
Get the I/O handle. More... | |
virtual void | set_handle (ACE_HANDLE) |
Set the I/O handle. More... | |
virtual int | priority (void) const |
virtual void | priority (int priority) |
Set the priority of the Event_Handler. More... | |
virtual int | handle_input (ACE_HANDLE fd=ACE_INVALID_HANDLE) |
Called when input events occur (e.g., connection or data). More... | |
virtual int | handle_output (ACE_HANDLE fd=ACE_INVALID_HANDLE) |
virtual int | handle_exception (ACE_HANDLE fd=ACE_INVALID_HANDLE) |
Called when an exceptional events occur (e.g., SIGURG). More... | |
virtual int | handle_timeout (const ACE_Time_Value ¤t_time, const void *act=0) |
virtual int | handle_exit (ACE_Process *) |
Called when a process exits. More... | |
virtual int | handle_close (ACE_HANDLE handle, ACE_Reactor_Mask close_mask) |
virtual int | handle_signal (int signum, siginfo_t *=0, ucontext_t *=0) |
virtual int | resume_handler (void) |
virtual int | handle_qos (ACE_HANDLE=ACE_INVALID_HANDLE) |
virtual int | handle_group_qos (ACE_HANDLE=ACE_INVALID_HANDLE) |
virtual void | reactor (ACE_Reactor *reactor) |
Set the event demultiplexors. More... | |
virtual ACE_Reactor * | reactor (void) const |
Get the event demultiplexors. More... | |
virtual ACE_Reactor_Timer_Interface * | reactor_timer_interface (void) const |
Get only the reactor's timer related interface. More... | |
virtual Reference_Count | add_reference (void) |
Increment reference count on the handler. More... | |
virtual Reference_Count | remove_reference (void) |
Decrement reference count on the handler. More... | |
Reference_Counting_Policy & | reference_counting_policy (void) |
Current Reference_Counting_Policy. More... | |
Public Member Functions inherited from ACE_Shared_Object | |
ACE_Shared_Object (void) | |
Constructor. More... | |
virtual | ~ACE_Shared_Object (void) |
Destructor. More... | |
virtual int | init (int argc, ACE_TCHAR *argv[]) |
Initializes object when dynamic linking occurs. More... | |
virtual int | fini (void) |
Terminates object when dynamic unlinking occurs. More... | |
virtual int | info (ACE_TCHAR **info_string, size_t length=0) const |
Returns information on a service object. More... | |
Private Attributes | |
TQ * | timer_queue_ |
The underlying Timer_Queue. More... | |
bool | delete_timer_queue_ |
ACE_SYNCH_RECURSIVE_MUTEX | mutex_ |
ACE_SYNCH_RECURSIVE_CONDITION | condition_ |
bool | active_ |
ACE_thread_t | thr_id_ |
Thread id of our active object task. More... | |
Additional Inherited Members | |
Static Public Member Functions inherited from ACE_Task_Base | |
static ACE_THR_FUNC_RETURN | svc_run (void *) |
Routine that runs the service routine as a daemon thread. More... | |
static void | cleanup (void *object, void *params) |
Static Public Member Functions inherited from ACE_Event_Handler | |
static ACE_THR_FUNC_RETURN | read_adapter (void *event_handler) |
static int | register_stdin_handler (ACE_Event_Handler *eh, ACE_Reactor *reactor, ACE_Thread_Manager *thr_mgr, int flags=THR_DETACHED) |
static int | remove_stdin_handler (ACE_Reactor *reactor, ACE_Thread_Manager *thr_mgr) |
Performs the inverse of the register_stdin_handler() method. More... | |
Protected Types inherited from ACE_Event_Handler | |
typedef ACE_Atomic_Op< ACE_SYNCH_MUTEX, Reference_Count > | Atomic_Reference_Count |
Typedef for implementation of reference counting. More... | |
Protected Member Functions inherited from ACE_Event_Handler | |
ACE_Event_Handler (ACE_Reactor *=0, int priority=ACE_Event_Handler::LO_PRIORITY) | |
Force ACE_Event_Handler to be an abstract base class. More... | |
Protected Attributes inherited from ACE_Task_Base | |
size_t | thr_count_ |
ACE_Thread_Manager * | thr_mgr_ |
Multi-threading manager. More... | |
u_long | flags_ |
ACE_Task flags. More... | |
int | grp_id_ |
This maintains the group id of the Task. More... | |
ACE_thread_t | last_thread_id_ |
Holds the thread ID of the last thread to exit svc() in this object. More... | |
Protected Attributes inherited from ACE_Event_Handler | |
Atomic_Reference_Count | reference_count_ |
Reference count. More... | |
Adapts an ACE timer queue using a separate thread for dispatching.
This implementation uses a separate thread to dispatch the timers. The base queue need not be thread safe; this class takes all the necessary locks.
typedef TQ ACE_Thread_Timer_Queue_Adapter< TQ, TYPE >::TIMER_QUEUE |
Trait for the underlying queue type.
ACE_Thread_Timer_Queue_Adapter< TQ, TYPE >::ACE_Thread_Timer_Queue_Adapter | ( | ACE_Thread_Manager * | tm = ACE_Thread_Manager::instance () , |
TQ * | timer_queue = 0 |
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Creates the timer queue. Activation of the task is the user's responsibility. Optionally a pointer to a timer queue can be passed, when no pointer is passed, a TQ is dynamically created
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Destructor.
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We override the default activate() method so that we can ensure that only a single thread is ever spawned. Otherwise, too many weird things can happen...
Reimplemented from ACE_Task_Base.
int ACE_Thread_Timer_Queue_Adapter< TQ, TYPE >::cancel | ( | long | timer_id, |
const void ** | act = 0 |
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Cancel the timer_id and return the act parameter if an address is passed in. Also wakes up the dispatching thread.
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Inform the dispatching thread that it should terminate.
ACE_SYNCH_RECURSIVE_MUTEX & ACE_Thread_Timer_Queue_Adapter< TQ, TYPE >::mutex | ( | void | ) |
Access the locking mechanism, useful for iteration.
long ACE_Thread_Timer_Queue_Adapter< TQ, TYPE >::schedule | ( | TYPE | handler, |
const void * | act, | ||
const ACE_Time_Value & | future_time, | ||
const ACE_Time_Value & | interval = ACE_Time_Value::zero |
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Schedule the timer according to the semantics of the <TQ>; wakes up the dispatching thread.
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Runs the dispatching thread.
Reimplemented from ACE_Task_Base.
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Return the thread id of our active object.
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Set a user-specified timer queue.
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inline |
Return the current <TQ>.
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private |
When deactivate is called this variable turns to false and the dispatching thread is signalled, to terminate its main loop.
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The dispatching thread sleeps on this condition while waiting to dispatch the next timer; it is used to wake it up if there is a change on the timer queue.
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Keeps track of whether we should delete the timer queue (if we didn't create it, then we don't delete it).
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The mutual exclusion mechanism that is required to use the <condition_>.
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Thread id of our active object task.
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The underlying Timer_Queue.