80 lines
1.7 KiB
C++
80 lines
1.7 KiB
C++
#ifndef THREADED_ARRAY_PROCESSOR_H
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#define THREADED_ARRAY_PROCESSOR_H
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#include "os/mutex.h"
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#include "os/os.h"
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#include "os/thread.h"
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#include "safe_refcount.h"
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#include "thread_safe.h"
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template <class C, class U>
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struct ThreadArrayProcessData {
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uint32_t elements;
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uint32_t index;
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C *instance;
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U userdata;
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void (C::*method)(uint32_t, U);
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void process(uint32_t p_index) {
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(instance->*method)(p_index, userdata);
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}
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};
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#ifndef NO_THREADS
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template <class T>
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void process_array_thread(void *ud) {
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T &data = *(T *)ud;
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while (true) {
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uint32_t index = atomic_increment(&data.index);
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if (index >= data.elements)
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break;
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data.process(index);
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}
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}
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template <class C, class M, class U>
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void thread_process_array(uint32_t p_elements, C *p_instance, M p_method, U p_userdata) {
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ThreadArrayProcessData<C, U> data;
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data.method = p_method;
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data.instance = p_instance;
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data.userdata = p_userdata;
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data.index = 0;
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data.elements = p_elements;
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data.process(data.index); //process first, let threads increment for next
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Vector<Thread *> threads;
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threads.resize(OS::get_singleton()->get_processor_count());
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for (int i = 0; i < threads.size(); i++) {
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threads[i] = Thread::create(process_array_thread<ThreadArrayProcessData<C, U> >, &data);
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}
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for (int i = 0; i < threads.size(); i++) {
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Thread::wait_to_finish(threads[i]);
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memdelete(threads[i]);
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}
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}
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#else
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template <class C, class M, class U>
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void thread_process_array(uint32_t p_elements, C *p_instance, M p_method, U p_userdata) {
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ThreadArrayProcessData<C, U> data;
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data.method = p_method;
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data.instance = p_instance;
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data.userdata = p_userdata;
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data.index = 0;
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data.elements = p_elements;
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for (uint32_t i = 0; i < p_elements; i++) {
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data.process(i);
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}
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}
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#endif
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#endif // THREADED_ARRAY_PROCESSOR_H
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