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MINOR: threads/atomic: implement pl_bts() on non-x86

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[ plock commit da17ba320aad3a8faf08e36fca604de9cad21fdd ]

This one was missing, it can be done using sync_fetch_and_or().
This commit is contained in:
Willy Tarreau 2017-07-18 15:05:58 +02:00
parent 01b8398b9e
commit d0d8ba59d3
1 changed files with 3 additions and 0 deletions
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3
include/import/atomic-ops.h
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@ -511,6 +511,9 @@ static inline void pl_mb()
#define pl_or(ptr, x) ({ __sync_or_and_fetch((ptr), (x)); })
#define pl_xor(ptr, x) ({ __sync_xor_and_fetch((ptr), (x)); })
#define pl_sub(ptr, x) ({ __sync_sub_and_fetch((ptr), (x)); })
#define pl_bts(ptr, bit) ({ typeof(*(ptr)) __pl_t = (1u << (bit)); \
__sync_fetch_and_or((ptr), __pl_t) & __pl_t; \
})
#define pl_xadd(ptr, x) ({ __sync_fetch_and_add((ptr), (x)); })
#define pl_cmpxchg(ptr, o, n) ({ __sync_val_compare_and_swap((ptr), (o), (n)); })
#define pl_xchg(ptr, x) ({ typeof(*(ptr)) __pl_t; \