projects / rustc.git / blame
| Commit | Line | Data |
|---|---|---|
| 3b2f2976 XL |
1 | /******************************************************************************/ |
| 2 | #ifdef JEMALLOC_H_TYPES | |
| 3 | ||
| 4 | typedef struct spin_s spin_t; | |
| 5 | ||
| 6 | #endif /* JEMALLOC_H_TYPES */ | |
| 7 | /******************************************************************************/ | |
| 8 | #ifdef JEMALLOC_H_STRUCTS | |
| 9 | ||
| 10 | struct spin_s { | |
| 11 | unsigned iteration; | |
| 12 | }; | |
| 13 | ||
| 14 | #endif /* JEMALLOC_H_STRUCTS */ | |
| 15 | /******************************************************************************/ | |
| 16 | #ifdef JEMALLOC_H_EXTERNS | |
| 17 | ||
| 18 | #endif /* JEMALLOC_H_EXTERNS */ | |
| 19 | /******************************************************************************/ | |
| 20 | #ifdef JEMALLOC_H_INLINES | |
| 21 | ||
| 22 | #ifndef JEMALLOC_ENABLE_INLINE | |
| 23 | void spin_init(spin_t *spin); | |
| 24 | void spin_adaptive(spin_t *spin); | |
| 25 | #endif | |
| 26 | ||
| 27 | #if (defined(JEMALLOC_ENABLE_INLINE) || defined(JEMALLOC_SPIN_C_)) | |
| 28 | JEMALLOC_INLINE void | |
| 29 | spin_init(spin_t *spin) | |
| 30 | { | |
| 31 | ||
| 32 | spin->iteration = 0; | |
| 33 | } | |
| 34 | ||
| 35 | JEMALLOC_INLINE void | |
| 36 | spin_adaptive(spin_t *spin) | |
| 37 | { | |
| 38 | volatile uint64_t i; | |
| 39 | ||
| 40 | for (i = 0; i < (KQU(1) << spin->iteration); i++) | |
| 41 | CPU_SPINWAIT; | |
| 42 | ||
| 43 | if (spin->iteration < 63) | |
| 44 | spin->iteration++; | |
| 45 | } | |
| 46 | ||
| 47 | #endif | |
| 48 | ||
| 49 | #endif /* JEMALLOC_H_INLINES */ | |
| 50 | /******************************************************************************/ | |
| 51 |