lock.h File Reference

#include <kernel/cpu/cli.h>
#include <kernel/log/panic.h>
#include <kernel/drivers/com.h>
#include <stdatomic.h>
#include <stdbool.h>
#include <sys/defs.h>

Include dependency graph for lock.h:

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Data Structures
struct	lock_t
	A simple ticket lock implementation. More...

Macros
#define	LOCK_DEADLOCK_ITERATIONS   10000000
	Number of iterations before we consider a deadlock to have occurred in lock_acquire. This is only used in debug builds.
#define	LOCK_CANARY   0xDEADBEEF
	Lock canary value to detect memory corruption.
#define	LOCK_SCOPE(lock)
	Acquires a lock for the reminder of the current scope.
#define	LOCK_CREATE()   {.nextTicket = ATOMIC_VAR_INIT(0), .nowServing = ATOMIC_VAR_INIT(0), .canary = LOCK_CANARY}
	Create a lock initializer.

Functions
static void	lock_init (lock_t *lock)
	Initializes a lock.
static void	lock_acquire (lock_t *lock)
	Acquires a lock, blocking until it is available.
static bool	lock_try_acquire (lock_t *lock)
	Tries to acquire a lock.
static void	lock_release (lock_t *lock)
	Releases a lock.
static void	lock_cleanup (lock_t **lock)