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added spinlock

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This commit is contained in:
Simon
2025-05-13 15:10:03 +02:00
parent 9afe202078
commit e4e7cb9d0c
2 changed files with 6 additions and 5 deletions
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2
main.cc
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@@ -115,7 +115,7 @@ extern "C" int main_ap() {
DBG << "test\n" << flush; DBG << "test\n" << flush;
DBG << static_cast<int>(LAPIC::getID()) << endl << flush; DBG << static_cast<int>(LAPIC::getID()) << endl << flush;
assert(Core::getID() != 1); //assert(Core::getID() != 1);
Application{}.action(); Application{}.action();
return 0; return 0;

9
sync/spinlock.h
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@@ -35,14 +35,15 @@ class Spinlock {
// Prevent copies and assignments // Prevent copies and assignments
Spinlock(const Spinlock& copy) = delete; Spinlock(const Spinlock& copy) = delete;
Spinlock& operator=(const Spinlock&) = delete; Spinlock& operator=(const Spinlock&) = delete;
private:
volatile uint64_t locked;
public: public:
/*! \brief Constructor; Initializes as unlocked. /*! \brief Constructor; Initializes as unlocked.
* *
* \todo(12) Complete Constructor (for \MPStuBS, or use \ref Ticketlock) * \todo(12) Complete Constructor (for \MPStuBS, or use \ref Ticketlock)
* *
*/ */
consteval Spinlock() {} consteval Spinlock() : locked(0) {}
/*! \brief Enters the critical area. In case the area is already locked, /*! \brief Enters the critical area. In case the area is already locked,
* \ref lock() will actively wait until the area can be entered. * \ref lock() will actively wait until the area can be entered.
@@ -50,11 +51,11 @@ class Spinlock {
* \see \ref Core::pause() * \see \ref Core::pause()
* \todo(12) Implement Method (for \MPStuBS, or use \ref Ticketlock) * \todo(12) Implement Method (for \MPStuBS, or use \ref Ticketlock)
*/ */
void lock() {} void lock();
/*! \brief Unblocks the critical area. /*! \brief Unblocks the critical area.
* *
* \todo(12) Implement Method (for \MPStuBS, or use \ref Ticketlock) * \todo(12) Implement Method (for \MPStuBS, or use \ref Ticketlock)
*/ */
void unlock() {} void unlock();
}; };