atomic.h

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#ifndef TREE_SITTER_ATOMIC_H_
#define TREE_SITTER_ATOMIC_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) {
  return __sync_add_and_fetch(p, 1u);
}
 
static inline uint32_t atomic_dec(volatile uint32_t *p) {
  return __sync_sub_and_fetch(p, 1u);
}
 
#endif
 
#endif  // TREE_SITTER_ATOMIC_H_