server-skynet-source-3rd-je.../include/jemalloc/internal/spin.h

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/******************************************************************************/
#ifdef JEMALLOC_H_TYPES
typedef struct spin_s spin_t;
#endif /* JEMALLOC_H_TYPES */
/******************************************************************************/
#ifdef JEMALLOC_H_STRUCTS
struct spin_s {
unsigned iteration;
};
#endif /* JEMALLOC_H_STRUCTS */
/******************************************************************************/
#ifdef JEMALLOC_H_EXTERNS
#endif /* JEMALLOC_H_EXTERNS */
/******************************************************************************/
#ifdef JEMALLOC_H_INLINES
#ifndef JEMALLOC_ENABLE_INLINE
void spin_init(spin_t *spin);
void spin_adaptive(spin_t *spin);
#endif
#if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_SPIN_C_))
JEMALLOC_INLINE void
spin_init(spin_t *spin)
{
spin->iteration = 0;
}
JEMALLOC_INLINE void
spin_adaptive(spin_t *spin)
{
volatile uint64_t i;
for (i = 0; i < (KQU(1) << spin->iteration); i++)
CPU_SPINWAIT;
if (spin->iteration < 63)
spin->iteration++;
}
#endif
#endif /* JEMALLOC_H_INLINES */
/******************************************************************************/