database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-11-26 23:43:30 +03:00
Code Activity

Pgindent run for 8.0.

Browse Source
This commit is contained in:
Bruce Momjian
2004-08-29 05:07:03 +00:00
parent 90cb9c3051
commit b6b71b85bc
527 changed files with 20550 additions and 18283 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
src/include/storage/buf_internals.h
View File

@@ -2,13 +2,13 @@
*
* buf_internals.h
* Internal definitions for buffer manager and the buffer replacement
* strategy.
* strategy.
*
*
* Portions Copyright (c) 1996-2004, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/storage/buf_internals.h,v 1.72 2004/08/29 04:13:10 momjian Exp $
* $PostgreSQL: pgsql/src/include/storage/buf_internals.h,v 1.73 2004/08/29 05:06:58 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@@ -24,12 +24,15 @@
/*
* Flags for buffer descriptors
*/
#define BM_DIRTY (1 << 0) /* data needs writing */
#define BM_VALID (1 << 1) /* data is valid */
#define BM_IO_IN_PROGRESS (1 << 2) /* read or write in progress */
#define BM_IO_ERROR (1 << 3) /* previous I/O failed */
#define BM_JUST_DIRTIED (1 << 4) /* dirtied since write started */
#define BM_PIN_COUNT_WAITER (1 << 5) /* have waiter for sole pin */
#define BM_DIRTY (1 << 0) /* data needs writing */
#define BM_VALID (1 << 1) /* data is valid */
#define BM_IO_IN_PROGRESS (1 << 2) /* read or write in
* progress */
#define BM_IO_ERROR (1 << 3) /* previous I/O failed */
#define BM_JUST_DIRTIED (1 << 4) /* dirtied since write
* started */
#define BM_PIN_COUNT_WAITER (1 << 5) /* have waiter for sole
* pin */
typedef bits16 BufFlags;
@@ -137,13 +140,13 @@ typedef struct
*/
typedef struct
{
int prev; /* list links */
int next;
short list; /* ID of list it is currently in */
bool t1_vacuum; /* t => present only because of VACUUM */
TransactionId t1_xid; /* the xid this entry went onto T1 */
BufferTag buf_tag; /* page identifier */
int buf_id; /* currently assigned data buffer, or -1 */
int prev; /* list links */
int next;
short list; /* ID of list it is currently in */
bool t1_vacuum; /* t => present only because of VACUUM */
TransactionId t1_xid; /* the xid this entry went onto T1 */
BufferTag buf_tag; /* page identifier */
int buf_id; /* currently assigned data buffer, or -1 */
} BufferStrategyCDB;
/*
@@ -151,22 +154,23 @@ typedef struct
*/
typedef struct
{
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 */
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;
long num_lookup; /* Some hit statistics */
long num_hit[STRAT_NUM_LISTS];
time_t stat_report;
/* Array of CDB's starts here */
BufferStrategyCDB cdb[1]; /* VARIABLE SIZE ARRAY */
BufferStrategyCDB cdb[1]; /* VARIABLE SIZE ARRAY */
} BufferStrategyControl;
/* counters in buf_init.c */
extern long int ReadBufferCount;
extern long int ReadLocalBufferCount;
@@ -184,19 +188,19 @@ extern long int LocalBufferFlushCount;
/* freelist.c */
extern BufferDesc *StrategyBufferLookup(BufferTag *tagPtr, bool recheck,
int *cdb_found_index);
int *cdb_found_index);
extern BufferDesc *StrategyGetBuffer(int *cdb_replace_index);
extern void StrategyReplaceBuffer(BufferDesc *buf, BufferTag *newTag,
int cdb_found_index, int cdb_replace_index);
int cdb_found_index, int cdb_replace_index);
extern void StrategyInvalidateBuffer(BufferDesc *buf);
extern void StrategyHintVacuum(bool vacuum_active);
extern int StrategyDirtyBufferList(BufferDesc **buffers, BufferTag *buftags,
int max_buffers);
int max_buffers);
extern void StrategyInitialize(bool init);
/* buf_table.c */
extern void InitBufTable(int size);
extern int BufTableLookup(BufferTag *tagPtr);
extern int BufTableLookup(BufferTag *tagPtr);
extern void BufTableInsert(BufferTag *tagPtr, int cdb_id);
extern void BufTableDelete(BufferTag *tagPtr);