sm_base.h File Reference

#include "w_defines.h"
#include <vector>
#include "basics.h"
#include "w_debug.h"
#include <cstddef>
#include <cstdlib>
#include <cstring>
#include <climits>
#include "w.h"
#include "vec_t.h"
#include "latch.h"
#include "smthread.h"
#include "tid_t.h"
#include "smstats.h"

Go to the source code of this file.

Classes
class	memalign_allocator< T, Alignment >

Namespaces
	zero::buffer_pool

Typedefs
typedef w_rc_t	rc_t
typedef uint32_t	partition_number_t

Enumerations
enum	cmp_t {   bad_cmp_t = badOp, eq = eqOp, gt = gtOp, ge = geOp,   lt = ltOp, le = leOp }
	Comparison types used in scan_index_iShorthand for CompareOp. More...
enum	concurrency_t {   t_cc_bad, t_cc_none, t_cc_vol, t_cc_store,   t_cc_keyrange, t_cc_append }
	Lock granularities. More...
enum	pg_policy_t { t_append = 0x01, t_cache = 0x02, t_compact = 0x04 }
	File-compaction policy for creating records. More...

Typedef Documentation

partition_number_t

typedef uint32_t partition_number_t

skip

rc_t

typedef w_rc_t rc_t

Enumeration Type Documentation

cmp_t

enum cmp_t

Comparison types used in scan_index_iShorthand for CompareOp.

Enumerator
bad_cmp_t
eq
gt
ge
lt
le

concurrency_t

enum concurrency_t

Lock granularities.

• t_cc_bad Illegal
• t_cc_none No locking
• t_cc_vol Volume-level locking
• t_cc_store Index-level locking
• t_cc_keyrange Key-range locking using fence-keys

Enumerator
t_cc_bad
t_cc_none
t_cc_vol
t_cc_store
t_cc_keyrange
t_cc_append

pg_policy_t

enum pg_policy_t

File-compaction policy for creating records.

• t_append : append new record to file (preserve order)
• t_cache : look in cache for pages with space for new record (does not preserve order)
• t_compact: keep file compact even if it means searching the file for space in which to create the file (does not preserve order)

These are masks - the following combinations are sensible:

• t_append – preserve sort order
• t_cache | t_append – check the cache first, append if no luck
• t_cache | t_compact | t_append – append to file as a last resort

Enumerator
t_append
t_cache
t_compact