FlushLocalBuffer () releases buffer only if required

vadim4o · vadim4o · commit b00c2c1d3fa0 · 1997-01-16T08:13:14.000Z
by caller.
diff --git a/src/backend/storage/buffer/localbuf.c b/src/backend/storage/buffer/localbuf.c
@@ -15,7 +15,7 @@
  *
  *
  * IDENTIFICATION
- *    $Header: /cvsroot/pgsql/src/backend/storage/buffer/localbuf.c,v 1.4 1996/11/10 03:02:18 momjian Exp $
+ *    $Header: /cvsroot/pgsql/src/backend/storage/buffer/localbuf.c,v 1.5 1997/01/16 08:13:14 vadim Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -172,7 +172,7 @@ WriteLocalBuffer(Buffer buffer, bool release)
  *    flushes a local buffer
  */
 int
-FlushLocalBuffer(Buffer buffer)
+FlushLocalBuffer(Buffer buffer, bool release)
 {
     int bufid;
     Relation bufrel;
@@ -194,7 +194,8 @@ FlushLocalBuffer(Buffer buffer)
 	      (char *) MAKE_PTR(bufHdr->data));
 
     Assert(LocalRefCount[bufid] > 0);
-    LocalRefCount[bufid]--;
+    if ( release )
+    	LocalRefCount[bufid]--;
     
     return true;
 }

Original file line number	Diff line number	Diff line change
`@@ -15,7 +15,7 @@`
`15`	`15`	`*`
`16`	`16`	`*`
`17`	`17`	`* IDENTIFICATION`
`18`		`- * $Header: /cvsroot/pgsql/src/backend/storage/buffer/localbuf.c,v 1.4 1996/11/10 03:02:18 momjian Exp $`
	`18`	`+ * $Header: /cvsroot/pgsql/src/backend/storage/buffer/localbuf.c,v 1.5 1997/01/16 08:13:14 vadim Exp $`
`19`	`19`	`*`
`20`	`20`	`*-------------------------------------------------------------------------`
`21`	`21`	`*/`
`@@ -172,7 +172,7 @@ WriteLocalBuffer(Buffer buffer, bool release)`
`172`	`172`	`* flushes a local buffer`
`173`	`173`	`*/`
`174`	`174`	`int`
`175`		`-FlushLocalBuffer(Buffer buffer)`
	`175`	`+FlushLocalBuffer(Buffer buffer, bool release)`
`176`	`176`	`{`
`177`	`177`	`int bufid;`
`178`	`178`	`Relation bufrel;`
`@@ -194,7 +194,8 @@ FlushLocalBuffer(Buffer buffer)`
`194`	`194`	`(char *) MAKE_PTR(bufHdr->data));`
`195`	`195`
`196`	`196`	`Assert(LocalRefCount[bufid] > 0);`
`197`		`- LocalRefCount[bufid]--;`
	`197`	`+ if ( release )`
	`198`	`+ LocalRefCount[bufid]--;`
`198`	`199`
`199`	`200`	`return true;`
`200`	`201`	`}`