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Modernize atomics

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- Based on C++11's `atomic`
- Reworked `SafeRefCount` (based on the rewrite by @hpvb)
- Replaced free atomic functions by the new `SafeNumeric<T>`
- Replaced wrong cases of `volatile bool` by the new `SafeFlag`
- Platform-specific implementations no longer needed

Co-authored-by: Hein-Pieter van Braam-Stewart <hp@tmm.cx>
This commit is contained in:
Pedro J. Estébanez
2021-02-10 19:22:13 +01:00
parent 8870f43d74
commit 8e128726f0
58 changed files with 650 additions and 639 deletions
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8
core/os/threaded_array_processor.h
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@@ -40,7 +40,7 @@
template <class C, class U>
struct ThreadArrayProcessData {
uint32_t elements;
uint32_t index;
SafeNumeric<uint32_t> index;
C *instance;
U userdata;
void (C::*method)(uint32_t, U);
@@ -56,7 +56,7 @@ template <class T>
void process_array_thread(void *ud) {
T &data = *(T *)ud;
while (true) {
uint32_t index = atomic_increment(&data.index);
uint32_t index = data.index.increment();
if (index >= data.elements) {
break;
}
@@ -70,9 +70,9 @@ void thread_process_array(uint32_t p_elements, C *p_instance, M p_method, U p_us
data.method = p_method;
data.instance = p_instance;
data.userdata = p_userdata;
data.index = 0;
data.index.set(0);
data.elements = p_elements;
data.process(data.index); //process first, let threads increment for next
data.process(0); //process first, let threads increment for next
int thread_count = OS::get_singleton()->get_processor_count();
Thread *threads = memnew_arr(Thread, thread_count);