diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/pttstruct.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/include/pttstruct.h b/include/pttstruct.h index ce58a08e..9d1b1935 100644 --- a/include/pttstruct.h +++ b/include/pttstruct.h @@ -368,7 +368,10 @@ typedef struct keeploc_t { struct keeploc_t *next; } keeploc_t; -#define USHM_SIZE (MAX_ACTIVE + 4) /* why+4? */ +#define VALID_USHM_ENTRY(X) ((X) >= 0 && (X) < USHM_SIZE) +#define USHM_SIZE (MAX_ACTIVE + 4) +/* USHM_SIZE 比 MAX_ACTIVE 大是為了防止檢查人數上限時, 又同時衝進來 + * 會造成找 shm 空位的無窮迴圈. 又, 因 USHM 中用 hash, 空間稍大時效率較好. */ /* MAX_BMs is dirty hardcode 4 in mbbsd/cache.c:is_BM_cache() */ #define MAX_BMs 4 /* for BMcache, 一個看板最多幾板主 */ |