Where Online Learning is simpler!

The C and C++ Include Header Files

/usr/include/ntirpc/misc/macpthreads.h


$ cat -n /usr/include/ntirpc/misc/macpthreads.h

     1	#ifndef NTIRPC_MACPTHREADS_H_
     2	#define NTIRPC_MACPTHREADS_H_
     3	
     4	#include <err.h>
     5	#include <os/lock.h>
     6	#include <pthread.h>
     7	#include <string.h>
     8	#include <sys/errno.h>
     9	
    10	typedef os_unfair_lock pthread_spinlock_t;
    11	
    12	static inline int pthread_spin_init(os_unfair_lock *sp, int pshared)
    13	{
    14		if (pshared != PTHREAD_PROCESS_PRIVATE)
    15			errx(1, "Unsupported spinlock type: %d", pshared);
    16	
    17		memset(sp, 0, sizeof(*sp));
    18		return 0;
    19	}
    20	
    21	static inline int pthread_spin_lock(os_unfair_lock *sp)
    22	{
    23		os_unfair_lock_lock(sp);
    24		return 0;
    25	}
    26	
    27	static inline int pthread_spin_trylock(os_unfair_lock *sp)
    28	{
    29		return os_unfair_lock_trylock(sp) ? 0 : EBUSY;
    30	}
    31	
    32	static inline int pthread_spin_unlock(os_unfair_lock *sp)
    33	{
    34		os_unfair_lock_unlock(sp);
    35		return 0;
    36	}
    37	
    38	static inline int pthread_spin_destroy(os_unfair_lock *sp)
    39	{
    40		/* Nothing to do. */
    41		return 0;
    42	}
    43	
    44	#endif				/* NTIRPC_MACPTHREADS_H_ */