sem.h File Reference

public sys_sem APIs. More...

#include <zephyr/kernel.h>
#include <zephyr/sys/atomic.h>
#include <zephyr/types.h>
#include <zephyr/sys/iterable_sections.h>
#include <zephyr/sys/__assert.h>

Go to the source code of this file.

Data Structures
struct	sys_sem
	sys_sem structure More...

Macros
#define	SYS_SEM_DEFINE(_name, _initial_count, _count_limit)
	Statically define and initialize a sys_sem.
#define	SYS_SEM_LOCK_BREAK   continue
	Leaves a code block guarded with SYS_SEM_LOCK after releasing the lock.
#define	SYS_SEM_LOCK(sem)
	Guards a code block with the given sys_sem, automatically acquiring the semaphore before executing the code block.

Functions
int	sys_sem_init (struct sys_sem *sem, unsigned int initial_count, unsigned int limit)
	Initialize a semaphore.
int	sys_sem_give (struct sys_sem *sem)
	Give a semaphore.
int	sys_sem_take (struct sys_sem *sem, k_timeout_t timeout)
	Take a sys_sem.
unsigned int	sys_sem_count_get (struct sys_sem *sem)
	Get sys_sem's value.

Detailed Description

public sys_sem APIs.