ISAR/libmdbx
3
0
Fork 0
mirror of https://github.com/isar/libmdbx.git synced 2025-11-02 04:08:57 +08:00
Code Issues Packages Projects Releases Wiki Activity

mdbx: refactor dirty-page-list (preparation to rework).

Browse Source 
Change-Id: Ib52bb52f73ef1d31f55838d879de081fc0a140c2
This commit is contained in:
Leonid Yuriev
2020-12-02 14:17:57 +03:00
parent 7210f994fb
commit d8d89cca7d
2 changed files with 143 additions and 128 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
src/internals.h
View File

@@ -657,21 +657,22 @@ typedef pgno_t *MDBX_PNL;
typedef txnid_t *MDBX_TXL;
/* An Dirty-Page list item is an pgno/pointer pair. */
typedef union MDBX_DP {
__anonymous_struct_extension__ struct {
pgno_t pgno;
MDBX_page *ptr;
};
__anonymous_struct_extension__ struct {
unsigned sorted;
unsigned length;
};
} MDBX_DP;
typedef struct MDBX_dp {
pgno_t pgno;
MDBX_page *ptr;
} MDBX_dp;
/* An DPL (dirty-page list) is a sorted array of MDBX_DPs.
* The first element's length member is a count of how many actual
* elements are in the array. */
typedef MDBX_DP *MDBX_DPL;
/* An DPL (dirty-page list) is a sorted array of MDBX_DPs. */
typedef struct MDBX_dpl {
unsigned sorted;
unsigned length;
unsigned allocated;
unsigned limit;
#if (defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L) || \
(!defined(__cplusplus) && defined(_MSC_VER))
MDBX_dp items[] /* dynamic size with holes at zero and after the last */;
#endif
} MDBX_dpl;
/* PNL sizes */
#define MDBX_PNL_GRANULATE 1024
@@ -814,7 +815,7 @@ struct MDBX_txn {
* dirtylist into mt_parent after freeing hidden mt_parent pages. */
unsigned dirtyroom;
/* For write txns: Modified pages. Sorted when not MDBX_WRITEMAP. */
MDBX_DPL dirtylist;
MDBX_dpl *dirtylist;
/* The list of reclaimed txns from GC */
MDBX_TXL lifo_reclaimed;
/* The list of pages that became unused during this transaction. */