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glibc  2.9
Functions
pthread_spin_lock.c File Reference
#include "pthreadP.h"

Go to the source code of this file.

Functions

int pthread_spin_lock (pthread_spinlock_t *lock)

Function Documentation

int pthread_spin_lock ( pthread_spinlock_t *  lock)

Definition at line 23 of file pthread_spin_lock.c.

{
  int oldval;

  __asm __volatile ("0: lhi %0,0\n"
                  "   cs  %0,%2,%1\n"
                  "   jl  0b"
                  : "=&d" (oldval), "=Q" (*lock)
                  : "d" (1), "m" (*lock) : "cc" );
  return 0;
}