Mutex.hpp

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#pragma once
 
#include <zephyr/kernel.h>
#include <tl/expected.hpp>
 
namespace zct {
 
// Forward declarations
class Mutex;
 
class MutexLockGuard {
public:
 
    ~MutexLockGuard();
 
    // Prevent copying and moving
    MutexLockGuard(const MutexLockGuard&) = delete;
    MutexLockGuard& operator=(const MutexLockGuard&) = delete;
    MutexLockGuard(MutexLockGuard&&);
    MutexLockGuard& operator=(MutexLockGuard&&) = delete;
 
    bool didGetLock() const;
 
    // Allow Mutex to construct MutexLockGuard objects
    friend class Mutex;
 
protected:
    MutexLockGuard(Mutex& mutex, k_timeout_t timeout, int& mutexRc);
 
    Mutex& m_mutex;
 
    bool m_didGetLock = false;
};
 
class Mutex {
public:
    Mutex();
 
    ~Mutex();
 
    MutexLockGuard lockGuard(k_timeout_t timeout);
 
    struct k_mutex* getZephyrMutex();
protected:
 
    struct k_mutex m_zephyrMutex;
};
 
} // namespace zct