RPCSX/rpcsx
1
0
Fork 0
mirror of https://github.com/RPCSX/rpcsx.git synced 2026-04-09 08:25:16 +00:00
Code Issues Projects Releases Packages Wiki Activity

orbis-kernel: Add SharedAtomic utility

Browse source 
Initial shared atomic implementation for Darwin
This commit is contained in:
DH 2024-10-31 22:54:16 +03:00
parent d83a0723a7
commit 7d0f277ad5
10 changed files with 578 additions and 97 deletions
Download patch file Download diff file Expand all files Collapse all files

11
orbis-kernel/include/orbis/utils/SharedMutex.hpp
View file

@ -1,8 +1,9 @@
#pragma once
#include <atomic>
#include <mutex>
#include <orbis/utils/AtomicOp.hpp>
#include <orbis/utils/SharedAtomic.hpp>
#include <system_error>
namespace orbis {
inline namespace utils {
@ -16,11 +17,11 @@ class shared_mutex final {
c_err = 1u << 31,
};
std::atomic<unsigned> m_value{};
shared_atomic32 m_value{};
void impl_lock_shared(unsigned val);
void impl_unlock_shared(unsigned old);
int impl_wait();
std::errc impl_wait();
void impl_signal();
void impl_lock(unsigned val);
void impl_unlock(unsigned old);
@ -99,10 +100,10 @@ public:
}
// Check whether can immediately obtain an exclusive (writer) lock
bool is_free() const { return m_value.load() == 0; }
[[nodiscard]] bool is_free() const { return m_value.load() == 0; }
// Check whether can immediately obtain a shared (reader) lock
bool is_lockable() const { return m_value.load() < c_one - 1; }
[[nodiscard]] bool is_lockable() const { return m_value.load() < c_one - 1; }
private:
// For CV