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//-----------------------------------------------------------------------------
// Name: jobhandlerthreadpool.cpp
// Developer: Wolfire Games LLC
// Description:
// License: Read below
//-----------------------------------------------------------------------------
//
// Copyright 2022 Wolfire Games LLC
//
// 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.
//
//-----------------------------------------------------------------------------
#include <Memory/allocation.h>
#include "jobhandlerthreadpool.h"
#include <Logging/logdata.h>
#include <cstdlib>
#include <pthread.h>
#include <iostream>
#include "main.h"
#ifdef PLATFORM_LINUX
#include <unistd.h>
#endif
struct ItemJob {
Item* item;
int step;
int count;
volatile int performed;
};
static void* CalculateItemHash(void* item) {
ItemJob* ij = static_cast<ItemJob*>(item);
ij->performed = 0;
for (int i = 0; i < ij->count; i++) {
ij->item[i * ij->step].CalculateHash();
ij->performed++;
}
return 0;
}
JobHandlerThreadPool::JobHandlerThreadPool(int thread_count) : thread_count(thread_count) {
threads = static_cast<pthread_t*>(OG_MALLOC(sizeof(pthread_t) * thread_count));
}
JobHandlerThreadPool::~JobHandlerThreadPool() {
OG_FREE(threads);
}
void JobHandlerThreadPool::RunHashCalculation(std::vector<Item>& arr) {
ItemJob* itemjobs = static_cast<ItemJob*>(OG_MALLOC(sizeof(ItemJob) * thread_count));
int step = arr.size() / thread_count;
for (int i = 0; i < thread_count; i++) {
itemjobs[i].item = &arr[i];
itemjobs[i].step = thread_count;
itemjobs[i].count = step;
int err = pthread_create(&threads[i], NULL, CalculateItemHash, &itemjobs[i]);
if (err != 0) {
LOGE << "Thread create failed" << std::endl;
}
}
// Do the remaining items in our main thread.
for (int i = step * thread_count; i < arr.size(); i++) {
arr[i].CalculateHash();
}
int count = 0;
while (count < arr.size()) {
#ifdef PLATFORM_LINUX
sleep(1);
#endif
std::stringstream ss;
count = arr.size() - step * thread_count;
for (int i = 0; i < thread_count; i++) {
count += itemjobs[i].performed;
ss << ((itemjobs[i].performed == itemjobs[i].count) ? "d" : ".");
}
SetPercent(ss.str().c_str(), (int)(100.0f * ((float)count / (float)arr.size())));
}
for (int i = 0; i < thread_count; i++) {
void* retval;
int err = pthread_join(threads[i], &retval);
if (err != 0) {
LOGE << "Thread join failed" << std::endl;
}
}
OG_FREE(itemjobs);
}
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