diff options
Diffstat (limited to 'src/backend/storage/buffer/freelist.c')
| -rw-r--r-- | src/backend/storage/buffer/freelist.c | 43 |
1 files changed, 1 insertions, 42 deletions
diff --git a/src/backend/storage/buffer/freelist.c b/src/backend/storage/buffer/freelist.c index 9668eb6e436..6388bc724d9 100644 --- a/src/backend/storage/buffer/freelist.c +++ b/src/backend/storage/buffer/freelist.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/storage/buffer/freelist.c,v 1.38 2003/11/29 19:51:56 pgsql Exp $ + * $PostgreSQL: pgsql/src/backend/storage/buffer/freelist.c,v 1.39 2004/01/15 16:14:26 wieck Exp $ * *------------------------------------------------------------------------- */ @@ -32,13 +32,6 @@ #include "storage/proc.h" #include "access/xact.h" -#define STRAT_LIST_UNUSED -1 -#define STRAT_LIST_B1 0 -#define STRAT_LIST_T1 1 -#define STRAT_LIST_T2 2 -#define STRAT_LIST_B2 3 -#define STRAT_NUM_LISTS 4 - #ifndef MAX #define MAX(a,b) (((a) > (b)) ? (a) : (b)) #endif @@ -46,40 +39,6 @@ #define MIN(a,b) (((a) < (b)) ? (a) : (b)) #endif -/* - * The Cache Directory Block (CDB) of the Adaptive Replacement Cache (ARC) - */ -typedef struct bufstratcdb -{ - int prev; /* links in the queue */ - int next; - int list; /* current list */ - BufferTag buf_tag; /* buffer key */ - Buffer buf_id; /* currently assigned data buffer */ - TransactionId t1_xid; /* the xid this entry went onto T1 */ -} BufferStrategyCDB; - -/* - * The shared ARC control information. - */ -typedef struct bufstratcontrol -{ - - int target_T1_size; /* What T1 size are we aiming for */ - int listUnusedCDB; /* All unused StrategyCDB */ - int listHead[STRAT_NUM_LISTS]; /* ARC lists B1, T1, T2 and B2 */ - int listTail[STRAT_NUM_LISTS]; - int listSize[STRAT_NUM_LISTS]; - Buffer listFreeBuffers; /* List of unused buffers */ - - long num_lookup; /* Some hit statistics */ - long num_hit[STRAT_NUM_LISTS]; - time_t stat_report; - - BufferStrategyCDB cdb[1]; /* The cache directory */ -} BufferStrategyControl; - - static BufferStrategyControl *StrategyControl = NULL; static BufferStrategyCDB *StrategyCDB = NULL; |