/usr/include/xenomai/asm-generic/bits/current.h is in libxenomai-dev 2.6.2.1-2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 | #ifndef _XENO_ASM_GENERIC_CURRENT_H
#define _XENO_ASM_GENERIC_CURRENT_H
#include <pthread.h>
#include <nucleus/thread.h>
extern pthread_key_t xeno_current_mode_key;
xnhandle_t xeno_slow_get_current(void);
unsigned long xeno_slow_get_current_mode(void);
void xeno_current_warn_old(void);
#ifdef HAVE___THREAD
extern __thread __attribute__ ((tls_model ("initial-exec")))
xnhandle_t xeno_current;
extern __thread __attribute__ ((tls_model ("initial-exec")))
unsigned long *xeno_current_mode;
static inline xnhandle_t xeno_get_current(void)
{
return xeno_current;
}
#define xeno_get_current_fast() xeno_get_current()
static inline unsigned long xeno_get_current_mode(void)
{
return xeno_current_mode ? *xeno_current_mode : XNRELAX;
}
#else /* ! HAVE___THREAD */
extern pthread_key_t xeno_current_key;
xnhandle_t xeno_slow_get_current(void);
unsigned long xeno_slow_get_current_mode(void);
static inline xnhandle_t xeno_get_current(void)
{
void *val = pthread_getspecific(xeno_current_key);
return (xnhandle_t)val ?: xeno_slow_get_current();
}
/* syscall-free, but unreliable in TSD destructor context */
static inline xnhandle_t xeno_get_current_fast(void)
{
void *val = pthread_getspecific(xeno_current_key);
return (xnhandle_t)val ?: XN_NO_HANDLE;
}
static inline unsigned long xeno_get_current_mode(void)
{
unsigned long *mode;
mode = pthread_getspecific(xeno_current_mode_key);
return mode ? *mode : XNRELAX;
}
#endif /* ! HAVE___THREAD */
void xeno_init_current_keys(void);
void xeno_set_current(void);
void xeno_set_current_mode(unsigned long offset);
#endif /* _XENO_ASM_GENERIC_CURRENT_H */
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