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Standard pgindent run for 8.1.
This commit is contained in:
@ -1,9 +1,9 @@
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/*-------------------------------------------------------------------------
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*
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* pg_buffercache_pages.c
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* display some contents of the buffer cache
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* display some contents of the buffer cache
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*
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* $PostgreSQL: pgsql/contrib/pg_buffercache/pg_buffercache_pages.c,v 1.5 2005/10/12 16:45:13 tgl Exp $
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* $PostgreSQL: pgsql/contrib/pg_buffercache/pg_buffercache_pages.c,v 1.6 2005/10/15 02:49:05 momjian Exp $
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*-------------------------------------------------------------------------
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*/
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#include "postgres.h"
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@ -17,11 +17,11 @@
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#define NUM_BUFFERCACHE_PAGES_ELEM 6
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#if defined(WIN32) || defined(__CYGWIN__)
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extern DLLIMPORT BufferDesc *BufferDescriptors;
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extern DLLIMPORT volatile uint32 InterruptHoldoffCount;
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extern DLLIMPORT BufferDesc *BufferDescriptors;
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extern DLLIMPORT volatile uint32 InterruptHoldoffCount;
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#endif
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Datum pg_buffercache_pages(PG_FUNCTION_ARGS);
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Datum pg_buffercache_pages(PG_FUNCTION_ARGS);
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/*
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@ -34,24 +34,24 @@ typedef struct
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Oid relfilenode;
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Oid reltablespace;
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Oid reldatabase;
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BlockNumber blocknum;
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BlockNumber blocknum;
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bool isvalid;
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bool isdirty;
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} BufferCachePagesRec;
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} BufferCachePagesRec;
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/*
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* Function context for data persisting over repeated calls.
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*/
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typedef struct
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typedef struct
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{
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AttInMetadata *attinmeta;
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BufferCachePagesRec *record;
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char *values[NUM_BUFFERCACHE_PAGES_ELEM];
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AttInMetadata *attinmeta;
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BufferCachePagesRec *record;
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char *values[NUM_BUFFERCACHE_PAGES_ELEM];
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} BufferCachePagesContext;
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} BufferCachePagesContext;
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/*
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@ -63,44 +63,44 @@ Datum
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pg_buffercache_pages(PG_FUNCTION_ARGS)
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{
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FuncCallContext *funcctx;
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Datum result;
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MemoryContext oldcontext;
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BufferCachePagesContext *fctx; /* User function context. */
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TupleDesc tupledesc;
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HeapTuple tuple;
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FuncCallContext *funcctx;
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Datum result;
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MemoryContext oldcontext;
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BufferCachePagesContext *fctx; /* User function context. */
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TupleDesc tupledesc;
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HeapTuple tuple;
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if (SRF_IS_FIRSTCALL())
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{
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uint32 i;
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volatile BufferDesc *bufHdr;
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volatile BufferDesc *bufHdr;
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funcctx = SRF_FIRSTCALL_INIT();
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/* Switch context when allocating stuff to be used in later calls */
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oldcontext = MemoryContextSwitchTo(funcctx->multi_call_memory_ctx);
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/* Construct a tuple to return. */
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tupledesc = CreateTemplateTupleDesc(NUM_BUFFERCACHE_PAGES_ELEM, false);
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TupleDescInitEntry(tupledesc, (AttrNumber) 1, "bufferid",
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INT4OID, -1, 0);
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INT4OID, -1, 0);
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TupleDescInitEntry(tupledesc, (AttrNumber) 2, "relfilenode",
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OIDOID, -1, 0);
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OIDOID, -1, 0);
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TupleDescInitEntry(tupledesc, (AttrNumber) 3, "reltablespace",
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OIDOID, -1, 0);
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OIDOID, -1, 0);
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TupleDescInitEntry(tupledesc, (AttrNumber) 4, "reldatabase",
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OIDOID, -1, 0);
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OIDOID, -1, 0);
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TupleDescInitEntry(tupledesc, (AttrNumber) 5, "relblocknumber",
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INT8OID, -1, 0);
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INT8OID, -1, 0);
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TupleDescInitEntry(tupledesc, (AttrNumber) 6, "isdirty",
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BOOLOID, -1, 0);
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BOOLOID, -1, 0);
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/* Generate attribute metadata needed later to produce tuples */
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funcctx->attinmeta = TupleDescGetAttInMetadata(tupledesc);
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/*
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* Create a function context for cross-call persistence
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* and initialize the buffer counters.
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/*
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* Create a function context for cross-call persistence and initialize
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* the buffer counters.
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*/
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fctx = (BufferCachePagesContext *) palloc(sizeof(BufferCachePagesContext));
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funcctx->max_calls = NBuffers;
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@ -118,12 +118,12 @@ pg_buffercache_pages(PG_FUNCTION_ARGS)
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fctx->values[4] = (char *) palloc(3 * sizeof(uint32) + 1);
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fctx->values[5] = (char *) palloc(2);
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/* Return to original context when allocating transient memory */
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MemoryContextSwitchTo(oldcontext);
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/*
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/*
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* Lock Buffer map and scan though all the buffers, saving the
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* relevant fields in the fctx->record structure.
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*/
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@ -140,7 +140,7 @@ pg_buffercache_pages(PG_FUNCTION_ARGS)
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fctx->record[i].reldatabase = bufHdr->tag.rnode.dbNode;
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fctx->record[i].blocknum = bufHdr->tag.blockNum;
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if (bufHdr->flags & BM_DIRTY)
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if (bufHdr->flags & BM_DIRTY)
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fctx->record[i].isdirty = true;
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else
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fctx->record[i].isdirty = false;
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@ -159,34 +159,34 @@ pg_buffercache_pages(PG_FUNCTION_ARGS)
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}
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funcctx = SRF_PERCALL_SETUP();
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/* Get the saved state */
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fctx = funcctx->user_fctx;
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if (funcctx->call_cntr < funcctx->max_calls)
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{
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uint32 i = funcctx->call_cntr;
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char *values[NUM_BUFFERCACHE_PAGES_ELEM];
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uint32 i = funcctx->call_cntr;
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char *values[NUM_BUFFERCACHE_PAGES_ELEM];
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int j;
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/*
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* Use a temporary values array, initially pointing to
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* fctx->values, so it can be reassigned w/o losing the storage
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* for subsequent calls.
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/*
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* Use a temporary values array, initially pointing to fctx->values,
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* so it can be reassigned w/o losing the storage for subsequent
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* calls.
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*/
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for (j = 0; j < NUM_BUFFERCACHE_PAGES_ELEM; j++)
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{
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values[j] = fctx->values[j];
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}
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/*
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* Set all fields except the bufferid to null if the buffer is
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* unused or not valid.
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* Set all fields except the bufferid to null if the buffer is unused
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* or not valid.
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*/
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if (fctx->record[i].blocknum == InvalidBlockNumber ||
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fctx->record[i].isvalid == false )
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fctx->record[i].isvalid == false)
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{
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sprintf(values[0], "%u", fctx->record[i].bufferid);
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@ -205,7 +205,7 @@ pg_buffercache_pages(PG_FUNCTION_ARGS)
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sprintf(values[2], "%u", fctx->record[i].reltablespace);
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sprintf(values[3], "%u", fctx->record[i].reldatabase);
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sprintf(values[4], "%u", fctx->record[i].blocknum);
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if (fctx->record[i].isdirty)
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if (fctx->record[i].isdirty)
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{
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strcpy(values[5], "t");
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}
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@ -213,7 +213,7 @@ pg_buffercache_pages(PG_FUNCTION_ARGS)
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{
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strcpy(values[5], "f");
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}
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}
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@ -228,4 +228,3 @@ pg_buffercache_pages(PG_FUNCTION_ARGS)
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SRF_RETURN_DONE(funcctx);
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}
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