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#ifndef TREE_SITTER_ATOMIC_H_
#define TREE_SITTER_ATOMIC_H_
#include <stddef.h>
#include <stdint.h>
#ifdef __TINYC__
static inline size_t atomic_load(const volatile size_t *p) {
return *p;
}
static inline uint32_t atomic_inc(volatile uint32_t *p) {
*p += 1;
return *p;
}
static inline uint32_t atomic_dec(volatile uint32_t *p) {
*p-= 1;
return *p;
}
#elif defined(_WIN32)
#include <windows.h>
static inline size_t atomic_load(const volatile size_t *p) {
return *p;
}
static inline uint32_t atomic_inc(volatile uint32_t *p) {
return InterlockedIncrement((long volatile *)p);
}
static inline uint32_t atomic_dec(volatile uint32_t *p) {
return InterlockedDecrement((long volatile *)p);
}
#else
static inline size_t atomic_load(const volatile size_t *p) {
#ifdef __ATOMIC_RELAXED
return __atomic_load_n(p, __ATOMIC_RELAXED);
#else
return __sync_fetch_and_add((volatile size_t *)p, 0);
#endif
}
static inline uint32_t atomic_inc(volatile uint32_t *p) {
#ifdef __ATOMIC_RELAXED
return __atomic_add_fetch(p, 1U, __ATOMIC_SEQ_CST);
#else
return __sync_add_and_fetch(p, 1U);
#endif
}
static inline uint32_t atomic_dec(volatile uint32_t *p) {
#ifdef __ATOMIC_RELAXED
return __atomic_sub_fetch(p, 1U, __ATOMIC_SEQ_CST);
#else
return __sync_sub_and_fetch(p, 1U);
#endif
}
#endif
#endif // TREE_SITTER_ATOMIC_H_
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