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13 lines
339 B
C++

#include "sync/ticketlock.h"
void Ticketlock::lock() {
uint64_t ticket = __atomic_fetch_add(&ticket_count, 1, __ATOMIC_RELAXED);
while (ticket != __atomic_fetch_add(&ticket_current, 0, __ATOMIC_ACQUIRE)) {
Core::pause();
}
}
void Ticketlock::unlock() {
__atomic_fetch_add(&ticket_current, 1, __ATOMIC_RELEASE);
}