diff options
Diffstat (limited to 'src/include/storage/buf_internals.h')
| -rw-r--r-- | src/include/storage/buf_internals.h | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/src/include/storage/buf_internals.h b/src/include/storage/buf_internals.h index aa468905bff..2ba2cfb3aa6 100644 --- a/src/include/storage/buf_internals.h +++ b/src/include/storage/buf_internals.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: buf_internals.h,v 1.51 2001/10/01 05:36:17 tgl Exp $ + * $Id: buf_internals.h,v 1.52 2001/10/25 05:50:09 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -95,13 +95,14 @@ typedef struct sbufdesc bool cntxDirty; /* new way to mark block as dirty */ /* - * We can't physically remove items from a disk page if another backend - * has the buffer pinned. Hence, a backend may need to wait for all - * other pins to go away. This is signaled by setting its own backend ID - * into wait_backend_id and setting flag bit BM_PIN_COUNT_WAITER. - * At present, there can be only one such waiter per buffer. + * We can't physically remove items from a disk page if another + * backend has the buffer pinned. Hence, a backend may need to wait + * for all other pins to go away. This is signaled by setting its own + * backend ID into wait_backend_id and setting flag bit + * BM_PIN_COUNT_WAITER. At present, there can be only one such waiter + * per buffer. */ - BackendId wait_backend_id; /* backend ID of pin-count waiter */ + BackendId wait_backend_id; /* backend ID of pin-count waiter */ } BufferDesc; #define BufferDescriptorGetBuffer(bdesc) ((bdesc)->buf_id + 1) @@ -136,7 +137,7 @@ typedef struct _bmtrace int bmt_buf; Oid bmt_dbid; Oid bmt_relid; - BlockNumber bmt_blkno; + BlockNumber bmt_blkno; int bmt_op; #define BMT_NOTUSED 0 @@ -145,7 +146,6 @@ typedef struct _bmtrace #define BMT_DEALLOC 3 } bmtrace; - #endif /* BMTRACE */ @@ -183,5 +183,4 @@ extern int WriteLocalBuffer(Buffer buffer, bool release); extern int FlushLocalBuffer(Buffer buffer, bool sync, bool release); extern void LocalBufferSync(void); extern void ResetLocalBufferPool(void); - #endif /* BUFMGR_INTERNALS_H */ |