include/native/cond.h

Go to the documentation of this file.

#ifndef _XENO_COND_H
#define _XENO_COND_H

#include <nucleus/synch.h>
#include <native/mutex.h>

typedef struct rt_cond_info {

    int nwaiters;       /* !< Number of pending tasks. */

    char name[XNOBJECT_NAME_LEN]; /* !< Symbolic name. */

} RT_COND_INFO;

typedef struct rt_cond_placeholder {
    xnhandle_t opaque;
} RT_COND_PLACEHOLDER;

#if defined(__KERNEL__) || defined(__XENO_SIM__)

#define XENO_COND_MAGIC 0x55550606

typedef struct rt_cond {

    unsigned magic;   /* !< Magic code - must be first */

    xnsynch_t synch_base; /* !< Base synchronization object. */

    xnhandle_t handle;  /* !< Handle in registry -- zero if unregistered. */

    char name[XNOBJECT_NAME_LEN]; /* !< Symbolic name. */

#if defined(__KERNEL__) && defined(CONFIG_XENO_OPT_PERVASIVE)
    pid_t cpid;                 /* !< Creator's pid. */
#endif /* __KERNEL__ && CONFIG_XENO_OPT_PERVASIVE */

} RT_COND;

#ifdef __cplusplus
extern "C" {
#endif

int __native_cond_pkg_init(void);

void __native_cond_pkg_cleanup(void);

#ifdef __cplusplus
}
#endif

#else /* !(__KERNEL__ || __XENO_SIM__) */

typedef RT_COND_PLACEHOLDER RT_COND;

#ifdef __cplusplus
extern "C" {
#endif

int rt_cond_bind(RT_COND *cond,
                 const char *name,
                 RTIME timeout);

static inline int rt_cond_unbind (RT_COND *cond)

{
    cond->opaque = XN_NO_HANDLE;
    return 0;
}

#ifdef __cplusplus
}
#endif

#endif /* __KERNEL__ || __XENO_SIM__ */

#ifdef __cplusplus
extern "C" {
#endif

/* Public interface. */

int rt_cond_create(RT_COND *cond,
                   const char *name);

int rt_cond_delete(RT_COND *cond);

int rt_cond_signal(RT_COND *cond);

int rt_cond_broadcast(RT_COND *cond);

int rt_cond_wait(RT_COND *cond,
                 RT_MUTEX *mutex,
                 RTIME timeout);

int rt_cond_inquire(RT_COND *cond,
                    RT_COND_INFO *info);

#ifdef __cplusplus
}
#endif

#endif /* !_XENO_COND_H */

---