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spinlock_acquire() function
Top level spinlock acquire function, spins until get the lock This function will: - Save current interrupt state, then disable interrupts - Spin until lock is acquired or until timeout occurs - Restore interrupt state
Syntax
static inline bool __attribute__((always_inline)) spinlock_acquire(spinlock_t *lock,
int32_t timeout);
Notes
Spinlocks alone do no constitute true critical sections (as this function reenables interrupts once the spinlock is acquired). For critical sections, use the interface provided by the operating system.
Related Functions
Found 2 other functions taking a ![]()
spinlock_t
argument:
Function
Description
Initialize a lock to its default state - unlocked
Top level spinlock unlock function, unlocks a previously locked spinlock This function will: - Save current interrupt state, then disable interrupts - Release the spinlock - Restore interrupt state