diff options
Diffstat (limited to 'db2/include/mp.h')
| -rw-r--r-- | db2/include/mp.h | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/db2/include/mp.h b/db2/include/mp.h index f68f42b144..f108246f2c 100644 --- a/db2/include/mp.h +++ b/db2/include/mp.h @@ -4,7 +4,7 @@ * Copyright (c) 1996, 1997 * Sleepycat Software. All rights reserved. * - * @(#)mp.h 10.19 (Sleepycat) 10/25/97 + * @(#)mp.h 10.22 (Sleepycat) 11/28/97 */ struct __bh; typedef struct __bh BH; @@ -23,7 +23,6 @@ struct __mpoolfile; typedef struct __mpoolfile MPOOLFILE; #define DB_CACHESIZE_MIN ( 20 * 1024) #define INVALID 0 /* Invalid shared memory offset. */ -#define TEMPORARY "<tmp>" /* Temporary file name. */ /* * There are three ways we do locking in the mpool code: @@ -122,10 +121,10 @@ struct __db_mpool { int fd; /* Underlying mmap'd fd. */ - #define MP_ISPRIVATE 0x01 /* Private, so local memory. */ #define MP_LOCKHANDLE 0x02 /* Threaded, lock handles and region. */ #define MP_LOCKREGION 0x04 /* Concurrent access, lock region. */ +#define MP_MALLOC 0x08 /* If region in allocated memory. */ u_int32_t flags; }; @@ -157,7 +156,6 @@ struct __db_mpoolfile { /* These fields are not protected. */ TAILQ_ENTRY(__db_mpoolfile) q; /* Linked list of DB_MPOOLFILE's. */ - char *path; /* Initial file path. */ DB_MPOOL *dbmp; /* Overlying DB_MPOOL. */ MPOOLFILE *mfp; /* Underlying MPOOLFILE. */ @@ -165,11 +163,9 @@ struct __db_mpoolfile { size_t len; /* Length of mmap'd region. */ /* These fields need to be protected for multi-threaded support. */ -#define MP_PATH_ALLOC 0x001 /* Path is allocated memory. */ -#define MP_PATH_TEMP 0x002 /* Backing file is a temporary. */ -#define MP_READONLY 0x004 /* File is readonly. */ -#define MP_UPGRADE 0x008 /* File descriptor is readwrite. */ -#define MP_UPGRADE_FAIL 0x010 /* Upgrade wasn't possible. */ +#define MP_READONLY 0x01 /* File is readonly. */ +#define MP_UPGRADE 0x02 /* File descriptor is readwrite. */ +#define MP_UPGRADE_FAIL 0x04 /* Upgrade wasn't possible. */ u_int32_t flags; }; @@ -220,12 +216,9 @@ struct __mpoolfile { u_int32_t ref; /* Reference count. */ int ftype; /* File type. */ - int can_mmap; /* If the file can be mmap'd. */ - int lsn_off; /* Page's LSN offset. */ size_t path_off; /* File name location. */ - size_t fileid_off; /* File identification location. */ size_t pgcookie_len; /* Pgin/pgout cookie length. */ @@ -233,6 +226,12 @@ struct __mpoolfile { int lsn_cnt; /* Checkpoint buffers left to write. */ + db_pgno_t last_pgno; /* Last page in the file. */ + +#define MP_CAN_MMAP 0x01 /* If the file can be mmap'd. */ +#define MP_TEMP 0x02 /* Backing file is a temporary. */ + u_int32_t flags; + DB_MPOOL_FSTAT stat; /* Per-file mpool statistics. */ }; |