| 1 | #ifndef CIRCULAR_BUFFER_H |
| 2 | #define CIRCULAR_BUFFER_H 1 |
| 3 | |
| 4 | #include <string.h> |
| 5 | |
| 6 | struct circular_buffer { |
| 7 | size_t size, write, read, max_size; |
| 8 | size_t *statistics; |
| 9 | char *data; |
| 10 | }; |
| 11 | |
| 12 | // Allocation/deallocation functions |
| 13 | struct circular_buffer *cbuffer_new(size_t initial, size_t max, size_t *statistics); |
| 14 | void cbuffer_free(struct circular_buffer *buf); |
| 15 | |
| 16 | // Static allocation support |
| 17 | void cbuffer_init(struct circular_buffer *buf, size_t initial, size_t max, size_t *statistics); |
| 18 | void cbuffer_cleanup(struct circular_buffer *buf); |
| 19 | |
| 20 | // Buffer operations |
| 21 | int cbuffer_add_unsafe(struct circular_buffer *buf, const char *d, size_t d_len); |
| 22 | void cbuffer_remove_unsafe(struct circular_buffer *buf, size_t num); |
| 23 | size_t cbuffer_next_unsafe(struct circular_buffer *buf, char **start); |
| 24 | size_t cbuffer_available_size_unsafe(struct circular_buffer *buf); |
| 25 | void cbuffer_flush(struct circular_buffer *buf); |
| 26 | |
| 27 | // Reserve/commit operations for direct buffer access |
| 28 | char *cbuffer_reserve_unsafe(struct circular_buffer *buf, size_t size); |
| 29 | void cbuffer_commit_reserved_unsafe(struct circular_buffer *buf, size_t size); |
| 30 | |
| 31 | // Check if a size is wrapped in buffer and unwrap if necessary |
| 32 | bool cbuffer_ensure_unwrapped_size(struct circular_buffer *buf, size_t size); |
| 33 | |
| 34 | size_t cbuffer_used_size_unsafe(struct circular_buffer *buf); |
| 35 | |
| 36 | #endif |