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Fix code style and consistency of RWLock and Semaphore
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@ -31,39 +31,41 @@
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#ifndef RW_LOCK_H
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#define RW_LOCK_H
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#include "core/typedefs.h"
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#include <shared_mutex>
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class RWLock {
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mutable std::shared_timed_mutex mutex;
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public:
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// Lock the rwlock, block if locked by someone else
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void read_lock() const {
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// Lock the RWLock, block if locked by someone else.
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_ALWAYS_INLINE_ void read_lock() const {
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mutex.lock_shared();
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}
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// Unlock the rwlock, let other threads continue
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void read_unlock() const {
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// Unlock the RWLock, let other threads continue.
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_ALWAYS_INLINE_ void read_unlock() const {
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mutex.unlock_shared();
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}
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// Attempt to lock the RWLock for reading. True on success, false means it can't lock.
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bool read_try_lock() const {
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_ALWAYS_INLINE_ bool read_try_lock() const {
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return mutex.try_lock_shared();
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}
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// Lock the rwlock, block if locked by someone else
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void write_lock() {
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// Lock the RWLock, block if locked by someone else.
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_ALWAYS_INLINE_ void write_lock() {
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mutex.lock();
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}
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// Unlock the rwlock, let other thwrites continue
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void write_unlock() {
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// Unlock the RWLock, let other threads continue.
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_ALWAYS_INLINE_ void write_unlock() {
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mutex.unlock();
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}
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// Attempt to lock the RWLock for writing. True on success, false means it can't lock.
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bool write_try_lock() {
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_ALWAYS_INLINE_ bool write_try_lock() {
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return mutex.try_lock();
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}
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};
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@ -72,11 +74,11 @@ class RWLockRead {
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const RWLock &lock;
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public:
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RWLockRead(const RWLock &p_lock) :
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_ALWAYS_INLINE_ RWLockRead(const RWLock &p_lock) :
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lock(p_lock) {
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lock.read_lock();
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}
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~RWLockRead() {
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_ALWAYS_INLINE_ ~RWLockRead() {
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lock.read_unlock();
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}
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};
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@ -85,11 +87,11 @@ class RWLockWrite {
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RWLock &lock;
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public:
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RWLockWrite(RWLock &p_lock) :
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_ALWAYS_INLINE_ RWLockWrite(RWLock &p_lock) :
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lock(p_lock) {
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lock.write_lock();
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}
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~RWLockWrite() {
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_ALWAYS_INLINE_ ~RWLockWrite() {
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lock.write_unlock();
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}
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};
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@ -39,32 +39,33 @@
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class Semaphore {
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private:
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mutable std::mutex mutex_;
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mutable std::condition_variable condition_;
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mutable unsigned long count_ = 0; // Initialized as locked.
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mutable std::mutex mutex;
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mutable std::condition_variable condition;
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mutable uint32_t count = 0; // Initialized as locked.
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public:
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_ALWAYS_INLINE_ void post() const {
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std::lock_guard<decltype(mutex_)> lock(mutex_);
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++count_;
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condition_.notify_one();
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std::lock_guard lock(mutex);
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count++;
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condition.notify_one();
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}
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_ALWAYS_INLINE_ void wait() const {
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std::unique_lock<decltype(mutex_)> lock(mutex_);
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while (!count_) { // Handle spurious wake-ups.
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condition_.wait(lock);
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std::unique_lock lock(mutex);
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while (!count) { // Handle spurious wake-ups.
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condition.wait(lock);
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}
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--count_;
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count--;
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}
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_ALWAYS_INLINE_ bool try_wait() const {
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std::lock_guard<decltype(mutex_)> lock(mutex_);
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if (count_) {
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--count_;
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std::lock_guard lock(mutex);
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if (count) {
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count--;
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return true;
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} else {
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return false;
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}
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return false;
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}
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};
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