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semaphore

include/sync/semaphore.h View source View on GitHub

Structs

Section titled “Structs”

semaphore

Section titled “semaphore”
struct semaphore {
    _Atomic int32_t  count;
    bool             irq_disable;
    struct spinlock  lock;
    struct condvar   cv;
};

Functions

Section titled “Functions”

semaphore_init

Section titled “semaphore_init”
void semaphore_init(struct semaphore *s, int value, bool irq_disable);

semaphore_wait

Section titled “semaphore_wait”
void semaphore_wait(struct semaphore *s);

semaphore_timedwait

Section titled “semaphore_timedwait”
bool semaphore_timedwait(struct semaphore *s, time_t timeout_ms);

semaphore_post

Section titled “semaphore_post”
void semaphore_post(struct semaphore *s);

semaphore_postn

Section titled “semaphore_postn”
void semaphore_postn(struct semaphore *s, int n);

Macros

Section titled “Macros”

SEMAPHORE_INIT_IRQ_DISABLE

Section titled “SEMAPHORE_INIT_IRQ_DISABLE”
#define SEMAPHORE_INIT_IRQ_DISABLE true

SEMAPHORE_INIT_NORMAL

Section titled “SEMAPHORE_INIT_NORMAL”
#define SEMAPHORE_INIT_NORMAL false