diff options
Diffstat (limited to 'src/include/storage/buf_internals.h')
| -rw-r--r-- | src/include/storage/buf_internals.h | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/src/include/storage/buf_internals.h b/src/include/storage/buf_internals.h index f18322f169d..0c5b6d64c0c 100644 --- a/src/include/storage/buf_internals.h +++ b/src/include/storage/buf_internals.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2000, PostgreSQL, Inc * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: buf_internals.h,v 1.35 2000/01/26 05:58:32 momjian Exp $ + * $Id: buf_internals.h,v 1.36 2000/04/09 04:43:18 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -61,6 +61,16 @@ typedef struct buftag (a)->relId = (xx_reln)->rd_lockInfo.lockRelId \ ) +/* If we have to write a buffer "blind" (without a relcache entry), + * the BufferTag is not enough information. BufferBlindId carries the + * additional information needed. + */ +typedef struct bufblindid +{ + char dbname[NAMEDATALEN]; /* name of db in which buf belongs */ + char relname[NAMEDATALEN]; /* name of reln */ +} BufferBlindId; + #define BAD_BUFFER_ID(bid) ((bid) < 1 || (bid) > NBuffers) #define INVALID_DESCRIPTOR (-3) @@ -98,8 +108,7 @@ typedef struct sbufdesc bool ri_lock; /* read-intent lock */ bool w_lock; /* context exclusively locked */ - char sb_dbname[NAMEDATALEN]; /* name of db in which buf belongs */ - char sb_relname[NAMEDATALEN]; /* name of reln */ + BufferBlindId blind; /* extra info to support blind write */ } BufferDesc; /* @@ -164,7 +173,9 @@ extern BufferDesc *BufferDescriptors; extern BufferBlock BufferBlocks; extern long *PrivateRefCount; extern bits8 *BufferLocks; -extern long *CommitInfoNeedsSave; +extern BufferTag *BufferTagLastDirtied; +extern BufferBlindId *BufferBlindLastDirtied; +extern bool *BufferDirtiedByMe; extern SPINLOCK BufMgrLock; /* localbuf.c */ |