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// $Id: Default_Dispatcher_Impl.cpp 91670 2010-09-08 18:02:26Z johnnyw $
#include "Default_Dispatcher_Impl.h"
#include "ace/Sched_Params.h"
#if ! defined (__ACE_INLINE__)
#include "Default_Dispatcher_Impl.inl"
#endif /* __ACE_INLINE__ */
namespace Kokyu
{
Default_Dispatcher_Impl::Default_Dispatcher_Impl ()
: activated_ (0)
{
}
int
Default_Dispatcher_Impl::init_i (const Dispatcher_Attributes& attrs)
{
//create and init the dispatcher tasks here
ACE_DEBUG ((LM_DEBUG, "entering init_t\n" ));
int size = ACE_Utils::truncate_cast<int> (attrs.config_info_set_.size ());
if (size == 0)
{
return -1;
}
this->ntasks_ = size;
Dispatcher_Task_Auto_Ptr * tasks_array=0;
ACE_NEW_RETURN (tasks_array, Dispatcher_Task_Auto_Ptr[ntasks_], -1);
//ACE_DEBUG ((LM_DEBUG, "after new on task array\n" ));
tasks_.reset(tasks_array);
//ACE_DEBUG ((LM_DEBUG, "task array auto_ptr set\n" ));
ConfigInfoSet& config_set =
const_cast<ConfigInfoSet&> (attrs.config_info_set_);
ConfigInfoSet::ITERATOR iter(config_set);
int i=0;
ConfigInfo* config;
for (;i<size && iter.next (config);iter.advance ())
{
//ACE_DEBUG ((LM_DEBUG, "iter = %d\n", i));
Dispatcher_Task* task=0;
ACE_NEW_RETURN (task,
Dispatcher_Task (*config,
ACE_Thread_Manager::instance()),
-1);
auto_ptr<Dispatcher_Task> tmp_task_auto_ptr (task);
tasks_[i++] = tmp_task_auto_ptr;
//I couldn't use reset because MSVC6 auto_ptr does not have reset method.
//So in configurations where the auto_ptr maps to the std::auto_ptr instead
//of ACE auto_ptr, this would be a problem.
//tasks_[i++].reset (task);
}
this->thr_creation_flags_ = attrs.thread_creation_flags ();
if (attrs.immediate_activation_ && !this->activated_)
{
this->activate_i ();
}
curr_config_info_ = attrs.config_info_set_;
return 0;
}
int
Default_Dispatcher_Impl::activate_i ()
{
int i;
if (this->activated_)
return 0;
for(i=0; i<ntasks_; ++i)
{
Priority_t priority =
tasks_[i]->get_curr_config_info ().thread_priority_;
if (this->tasks_[i]->activate (this->thr_creation_flags_,
1, 1, priority) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("EC (%P|%t) cannot activate queue.")
ACE_TEXT ("Need superuser privilege to run in RT class\n")),
-1);
}
}
this->activated_ = 1;
return 0;
}
Dispatcher_Task*
Default_Dispatcher_Impl::find_task_with_preemption_prio (Priority_t prio)
{
int i;
if (prio >=0)
{
for( i=0; i<ntasks_; ++i)
{
if ( tasks_[i]->preemption_priority () == prio)
return tasks_[i].get();
}
}
return 0;
}
int
Default_Dispatcher_Impl::dispatch_i (const Dispatch_Command* cmd,
const QoSDescriptor& qos_info)
{
//delegate to the appropriate task
if (qos_info.preemption_priority_ < 0)
return -1;
Dispatcher_Task* task =
find_task_with_preemption_prio (qos_info.preemption_priority_);
//@@VS - We should insert this into the lowest prio queue.
//How do we know that the last queue is the lowest prio queue.
if (task == 0)
task = tasks_[ntasks_-1].get ();
return task->enqueue (cmd, qos_info);
}
int
Default_Dispatcher_Impl::shutdown_i ()
{
//This needs to be revisited based on mode transition and
//consistent cut through the queues
//post shutdown command to all tasks
int i;
for(i=0; i<ntasks_; ++i)
{
QoSDescriptor qos_info;
Shutdown_Task_Command* shutdown_cmd = 0;
ACE_NEW_RETURN (shutdown_cmd, Shutdown_Task_Command, -1);
tasks_[i]->enqueue (shutdown_cmd, qos_info);
}
//wait for all tasks to exit
for (i=0; i<ntasks_; ++i)
{
tasks_[i]->wait ();
}
return 0;
}
int
Shutdown_Task_Command::execute ()
{
return -1;
}
}
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