SEMAPHORE

Provides APIs for Semaphore. More...

Collaboration diagram for SEMAPHORE:

Data Structures
struct	semholder_s
	Structure of semholder. More...
struct	sem_s
	Structure of generic semaphore. More...

Macros
#define	SEM_INITIALIZER(c)   {(c), NULL} /* semcount, hhead */
	Sem initializer. More...

Functions
int	sem_init (FAR sem_t *sem, int pshared, unsigned int value)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...
int	sem_destroy (FAR sem_t *sem)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...
int	sem_wait (FAR sem_t *sem)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...
int	sem_timedwait (FAR sem_t *sem, FAR const struct timespec *abstime)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...
int	sem_trywait (FAR sem_t *sem)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...
int	sem_post (FAR sem_t *sem)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...
int	sem_getvalue (FAR sem_t *sem, FAR int *sval)
	POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/) More...

Detailed Description

Provides APIs for Semaphore.

Macro Definition Documentation

#define SEM_INITIALIZER

(

c

)

{(c), NULL} /* semcount, hhead */

Sem initializer.

Definition at line 140 of file semaphore.h.

Function Documentation

int sem_destroy

(

FAR sem_t *

sem

)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

[SYSTEM CALL API]

Since

Tizen RT v1.0

int sem_getvalue	(	FAR sem_t *	sem,
		FAR int *	sval
	)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

Since

Tizen RT v1.0

int sem_init	(	FAR sem_t *	sem,
		int	pshared,
		unsigned int	value
	)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

Since

Tizen RT v1.0

int sem_post

(

FAR sem_t *

sem

)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

[SYSTEM CALL API]

Since

Tizen RT v1.0

int sem_timedwait	(	FAR sem_t *	sem,
		FAR const struct timespec *	abstime
	)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

[SYSTEM CALL API]

Since

Tizen RT v1.0

int sem_trywait

(

FAR sem_t *

sem

)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

[SYSTEM CALL API]

Since

Tizen RT v1.0

int sem_wait

(

FAR sem_t *

sem

)

POSIX APIs (refer to : http://pubs.opengroup.org/onlinepubs/9699919799/)

[SYSTEM CALL API]

Since

Tizen RT v1.0