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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/diag/attn/test/attnrandsource.C $ */
/* */
/* OpenPOWER HostBoot Project */
/* */
/* COPYRIGHT International Business Machines Corp. 2012,2014 */
/* */
/* Licensed under the Apache License, Version 2.0 (the "License"); */
/* you may not use this file except in compliance with the License. */
/* You may obtain a copy of the License at */
/* */
/* http://www.apache.org/licenses/LICENSE-2.0 */
/* */
/* Unless required by applicable law or agreed to in writing, software */
/* distributed under the License is distributed on an "AS IS" BASIS, */
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
/* implied. See the License for the specific language governing */
/* permissions and limitations under the License. */
/* */
/* IBM_PROLOG_END_TAG */
/**
* @file attnrandsource.C
*
* @brief HBATTN Random attention source class method definitions.
*/
#include "attnrandsource.H"
#include "attninject.H"
#include "../attntrace.H"
#include "sys/time.h"
using namespace PRDF;
using namespace TARGETING;
using namespace std;
namespace ATTN
{
bool RandSource::start()
{
bool success = false;
mutex_lock(&iv_mutex);
if(!iv_tid)
{
iv_tid = task_create(&main, this);
}
success = iv_tid != 0;
ATTN_DBG("RandSource started: %d", iv_tid);
mutex_unlock(&iv_mutex);
return success;
}
bool RandSource::wait()
{
mutex_lock(&iv_mutex);
tid_t t = iv_tid;
iv_tid = 0;
mutex_unlock(&iv_mutex);
if(t)
{
task_wait_tid(t, 0, 0);
}
return true;
}
void* RandSource::main(void * i_source)
{
RandSource * src = static_cast<RandSource *>(i_source);
src->run();
return NULL;
}
void RandSource::run()
{
mutex_lock(&iv_mutex);
uint64_t iterations = iv_iterations, delay, count;
mutex_unlock(&iv_mutex);
while(iterations--)
{
delay = randint(TEN_CTX_SWITCHES_NS, TEN_CTX_SWITCHES_NS * 10) / iv_iterations +1;
count = randint(1, iv_max);
nanosleep(0, delay);
AttnList l;
AttnData d;
while(count--)
{
// select a random target
// generate a random attention
d.targetHndl = *(iv_first + randint(0, distance(iv_first, iv_last) -1));
d.attnType = getRandomAttentionType();
l.push_back(d);
}
iv_injectSink->putAttentions(l);
}
}
RandSource::RandSource(
uint64_t i_iterations,
uint64_t i_maxAttnsPerIteration,
InjectSink & i_injectSink,
TargetHandle_t * i_first,
TargetHandle_t * i_last)
: iv_tid(0),
iv_iterations(i_iterations),
iv_max(i_maxAttnsPerIteration),
iv_injectSink(&i_injectSink),
iv_first(i_first),
iv_last(i_last)
{
mutex_init(&iv_mutex);
}
RandSource::~RandSource()
{
mutex_destroy(&iv_mutex);
}
}
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