| 1 | // SPDX-License-Identifier: GPL-3.0-or-later |
| 2 | |
| 3 | #ifndef NETDATA_ALIGNMENT_H |
| 4 | #define NETDATA_ALIGNMENT_H |
| 5 | |
| 6 | #include "../libnetdata-base.h" |
| 7 | |
| 8 | #if ENV32BIT |
| 9 | #define SYSTEM_REQUIRED_ALIGNMENT (sizeof(uintptr_t) * 2) |
| 10 | #else |
| 11 | #define SYSTEM_REQUIRED_ALIGNMENT (alignof(uintptr_t)) |
| 12 | #endif |
| 13 | |
| 14 | static inline size_t memory_alignment(size_t size, size_t alignment) __attribute__((const)); |
| 15 | static inline size_t memory_alignment(size_t size, size_t alignment) { |
| 16 | // return (size + alignment - 1) & ~(alignment - 1); // assumes alignment is power of 2 |
| 17 | return ((size + alignment - 1) / alignment) * alignment; |
| 18 | } |
| 19 | |
| 20 | static inline size_t natural_alignment(size_t size) __attribute__((const)); |
| 21 | static inline size_t natural_alignment(size_t size) { |
| 22 | return memory_alignment(size, SYSTEM_REQUIRED_ALIGNMENT); |
| 23 | } |
| 24 | |
| 25 | #endif //NETDATA_ALIGNMENT_H |