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/*
* Copyright (c) 2011, Denis Steckelmacher <steckdenis@yahoo.fr>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the copyright holder nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* \file api_event.cpp
* \brief Special events and event management
*/
#include <CL/cl.h>
#include <core/commandqueue.h>
#include <core/events.h>
#include <core/context.h>
#include <stdio.h>
// Event Object APIs
cl_int
clWaitForEvents(cl_uint num_events,
const cl_event * event_list)
{
if (!num_events || !event_list)
return CL_INVALID_VALUE;
// Check the events in the list to ensure thay have same context
cl_context global_ctx = 0;
for (cl_uint i=0; i<num_events; ++i)
{
if (!event_list[i]->isA(Coal::Object::T_Event))
return CL_INVALID_EVENT;
if (event_list[i]->status() < 0)
return CL_EXEC_STATUS_ERROR_FOR_EVENTS_IN_WAIT_LIST;
cl_context evt_ctx;
if (event_list[i]->type() == Coal::Event::User) {
evt_ctx = (cl_context)((Coal::UserEvent *)event_list[i])->context();
}
else {
evt_ctx = (cl_context)event_list[i]->parent()->parent();
}
#if 0 // YUAN: no need to wait for queue to be flushed
cl_command_queue evt_queue = (cl_command_queue)event_list[i]->parent();
// Flush the queue
evt_queue->flush();
#endif
if (global_ctx == 0)
global_ctx = evt_ctx;
else if (global_ctx != evt_ctx)
return CL_INVALID_CONTEXT;
}
// Wait for the events
for (cl_uint i=0; i<num_events; ++i)
{
event_list[i]->waitForStatus(CL_COMPLETE);
}
return CL_SUCCESS;
}
cl_int
clGetEventInfo(cl_event event,
cl_event_info param_name,
size_t param_value_size,
void * param_value,
size_t * param_value_size_ret)
{
if (!event->isA(Coal::Object::T_Event))
return CL_INVALID_EVENT;
return event->info(param_name, param_value_size, param_value,
param_value_size_ret);
}
cl_int
clSetEventCallback(cl_event event,
cl_int command_exec_callback_type,
void (CL_CALLBACK *pfn_event_notify)(cl_event event,
cl_int exec_status,
void *user_data),
void *user_data)
{
if (!event->isA(Coal::Object::T_Event))
return CL_INVALID_EVENT;
if (!pfn_event_notify ||
!((command_exec_callback_type == CL_SUBMITTED) ||
(command_exec_callback_type == CL_RUNNING) ||
(command_exec_callback_type == CL_COMPLETE)))
return CL_INVALID_VALUE;
event->setCallback(command_exec_callback_type, pfn_event_notify, user_data);
return CL_SUCCESS;
}
cl_int
clRetainEvent(cl_event event)
{
if (!event->isA(Coal::Object::T_Event))
return CL_INVALID_EVENT;
event->reference();
return CL_SUCCESS;
}
cl_int
clReleaseEvent(cl_event event)
{
if (!event->isA(Coal::Object::T_Event))
return CL_INVALID_EVENT;
if (event->dereference())
{
event->freeDeviceData();
delete event;
}
return CL_SUCCESS;
}
cl_event
clCreateUserEvent(cl_context context,
cl_int * errcode_ret)
{
cl_int dummy_errcode;
if (!errcode_ret)
errcode_ret = &dummy_errcode;
if (!context->isA(Coal::Object::T_Context))
{
*errcode_ret = CL_INVALID_CONTEXT;
return 0;
}
*errcode_ret = CL_SUCCESS;
Coal::UserEvent *command = new Coal::UserEvent(
(Coal::Context *)context, errcode_ret
);
if (*errcode_ret != CL_SUCCESS)
{
delete command;
return 0;
}
return (cl_event)command;
}
cl_int
clSetUserEventStatus(cl_event event,
cl_int execution_status)
{
Coal::Event *command = (Coal::Event *)event;
if (!command->isA(Coal::Object::T_Event) ||
command->type() != Coal::Event::User)
return CL_INVALID_EVENT;
if (!((execution_status == CL_COMPLETE) || (execution_status < 0)))
return CL_INVALID_VALUE;
if (command->status() != CL_SUBMITTED)
return CL_INVALID_OPERATION;
command->setStatus((Coal::Event::Status)execution_status);
return CL_SUCCESS;
}
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