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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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10
core/core_bind.cpp
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@ -1990,7 +1990,7 @@ void _Thread::_start_func(void *ud) {
}
Error _Thread::start(Object *p_instance, const StringName &p_method, const Variant &p_userdata, Priority p_priority) {
ERR_FAIL_COND_V_MSG(active, ERR_ALREADY_IN_USE, "Thread already started.");
ERR_FAIL_COND_V_MSG(active.is_set(), ERR_ALREADY_IN_USE, "Thread already started.");
ERR_FAIL_COND_V(!p_instance, ERR_INVALID_PARAMETER);
ERR_FAIL_COND_V(p_method == StringName(), ERR_INVALID_PARAMETER);
ERR_FAIL_INDEX_V(p_priority, PRIORITY_MAX, ERR_INVALID_PARAMETER);
@ -1999,7 +1999,7 @@ Error _Thread::start(Object *p_instance, const StringName &p_method, const Varia
target_method = p_method;
target_instance = p_instance;
userdata = p_userdata;
active = true;
active.set();
Ref<_Thread> *ud = memnew(Ref<_Thread>(this));
@ -2015,14 +2015,14 @@ String _Thread::get_id() const {
}
bool _Thread::is_active() const {
return active;
return active.is_set();
}
Variant _Thread::wait_to_finish() {
ERR_FAIL_COND_V_MSG(!active, Variant(), "Thread must be active to wait for its completion.");
ERR_FAIL_COND_V_MSG(!active.is_set(), Variant(), "Thread must be active to wait for its completion.");
thread.wait_to_finish();
Variant r = ret;
active = false;
active.clear();
target_method = StringName();
target_instance = nullptr;
userdata = Variant();