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avoid thread over-allocation on initial region allocations

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This commit is contained in:
daan 2019-07-15 17:35:43 -07:00
parent 7ea9cf8d1f
commit 72d8608333
3 changed files with 54 additions and 38 deletions
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21
include/mimalloc-atomic.h
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@ -42,14 +42,22 @@ static inline uintptr_t mi_atomic_exchange(volatile uintptr_t* p, uintptr_t exch
// Atomically read a value
static inline uintptr_t mi_atomic_read(volatile uintptr_t* p);
// Atomically read a pointer
static inline void* mi_atomic_read_ptr(volatile void** p);
// Atomically write a value
static inline void mi_atomic_write(volatile uintptr_t* p, uintptr_t x);
// Atomically read a pointer
static inline void* mi_atomic_read_ptr(volatile void** p) {
return (void*)mi_atomic_read( (volatile uintptr_t*)p );
}
static inline void mi_atomic_yield(void);
// Atomically write a pointer
static inline void mi_atomic_write_ptr(volatile void** p, void* x) {
mi_atomic_write((volatile uintptr_t*)p, (uintptr_t)x );
}
// Atomically compare and exchange a pointer; returns `true` if successful.
static inline bool mi_atomic_compare_exchange_ptr(volatile void** p, void* newp, void* compare) {
return mi_atomic_compare_exchange((volatile uintptr_t*)p, (uintptr_t)newp, (uintptr_t)compare);
@ -99,9 +107,6 @@ static inline uintptr_t mi_atomic_exchange(volatile uintptr_t* p, uintptr_t exch
static inline uintptr_t mi_atomic_read(volatile uintptr_t* p) {
return *p;
}
static inline void* mi_atomic_read_ptr(volatile void** p) {
return (void*)(*p);
}
static inline void mi_atomic_write(volatile uintptr_t* p, uintptr_t x) {
*p = x;
}
@ -171,10 +176,6 @@ static inline uintptr_t mi_atomic_read(volatile uintptr_t* p) {
MI_USING_STD
return atomic_load_explicit((volatile atomic_uintptr_t*)p, memory_order_relaxed);
}
static inline void* mi_atomic_read_ptr(volatile void** p) {
MI_USING_STD
return atomic_load_explicit((volatile _Atomic(void*)*)p, memory_order_relaxed);
}
static inline void mi_atomic_write(volatile uintptr_t* p, uintptr_t x) {
MI_USING_STD
return atomic_store_explicit((volatile atomic_uintptr_t*)p, x, memory_order_relaxed);