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-rw-r--r--src/backend/access/heap/stats.c329
1 files changed, 329 insertions, 0 deletions
diff --git a/src/backend/access/heap/stats.c b/src/backend/access/heap/stats.c
new file mode 100644
index 00000000000..d41d01ac1ba
--- /dev/null
+++ b/src/backend/access/heap/stats.c
@@ -0,0 +1,329 @@
+/*-------------------------------------------------------------------------
+ *
+ * stats.c--
+ * heap access method debugging statistic collection routines
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ *
+ * IDENTIFICATION
+ * $Header: /cvsroot/pgsql/src/backend/access/heap/Attic/stats.c,v 1.1.1.1 1996/07/09 06:21:11 scrappy Exp $
+ *
+ * NOTES
+ * initam should be moved someplace else.
+ *
+ *-------------------------------------------------------------------------
+ */
+#include "postgres.h"
+
+#include "access/heapam.h"
+
+#include "utils/memutils.h"
+#include "utils/palloc.h"
+#include "utils/elog.h"
+#include "utils/mcxt.h"
+
+/* ----------------
+ * InitHeapAccessStatistics
+ * ----------------
+ */
+HeapAccessStatistics heap_access_stats = (HeapAccessStatistics) NULL;
+
+void
+InitHeapAccessStatistics()
+{
+ MemoryContext oldContext;
+ HeapAccessStatistics stats;
+
+ /* ----------------
+ * make sure we don't initialize things twice
+ * ----------------
+ */
+ if (heap_access_stats != NULL)
+ return;
+
+ /* ----------------
+ * allocate statistics structure from the top memory context
+ * ----------------
+ */
+ oldContext = MemoryContextSwitchTo(TopMemoryContext);
+
+ stats = (HeapAccessStatistics)
+ palloc(sizeof(HeapAccessStatisticsData));
+
+ /* ----------------
+ * initialize fields to default values
+ * ----------------
+ */
+ stats->global_open = 0;
+ stats->global_openr = 0;
+ stats->global_close = 0;
+ stats->global_beginscan = 0;
+ stats->global_rescan = 0;
+ stats->global_endscan = 0;
+ stats->global_getnext = 0;
+ stats->global_fetch = 0;
+ stats->global_insert = 0;
+ stats->global_delete = 0;
+ stats->global_replace = 0;
+ stats->global_markpos = 0;
+ stats->global_restrpos = 0;
+ stats->global_BufferGetRelation = 0;
+ stats->global_RelationIdGetRelation = 0;
+ stats->global_RelationIdGetRelation_Buf = 0;
+ stats->global_getreldesc = 0;
+ stats->global_heapgettup = 0;
+ stats->global_RelationPutHeapTuple = 0;
+ stats->global_RelationPutLongHeapTuple = 0;
+
+ stats->local_open = 0;
+ stats->local_openr = 0;
+ stats->local_close = 0;
+ stats->local_beginscan = 0;
+ stats->local_rescan = 0;
+ stats->local_endscan = 0;
+ stats->local_getnext = 0;
+ stats->local_fetch = 0;
+ stats->local_insert = 0;
+ stats->local_delete = 0;
+ stats->local_replace = 0;
+ stats->local_markpos = 0;
+ stats->local_restrpos = 0;
+ stats->local_BufferGetRelation = 0;
+ stats->local_RelationIdGetRelation = 0;
+ stats->local_RelationIdGetRelation_Buf = 0;
+ stats->local_getreldesc = 0;
+ stats->local_heapgettup = 0;
+ stats->local_RelationPutHeapTuple = 0;
+ stats->local_RelationPutLongHeapTuple = 0;
+ stats->local_RelationNameGetRelation = 0;
+ stats->global_RelationNameGetRelation = 0;
+
+ /* ----------------
+ * record init times
+ * ----------------
+ */
+ time(&stats->init_global_timestamp);
+ time(&stats->local_reset_timestamp);
+ time(&stats->last_request_timestamp);
+
+ /* ----------------
+ * return to old memory context
+ * ----------------
+ */
+ (void) MemoryContextSwitchTo(oldContext);
+
+ heap_access_stats = stats;
+}
+
+/* ----------------
+ * ResetHeapAccessStatistics
+ * ----------------
+ */
+void
+ResetHeapAccessStatistics()
+{
+ HeapAccessStatistics stats;
+
+ /* ----------------
+ * do nothing if stats aren't initialized
+ * ----------------
+ */
+ if (heap_access_stats == NULL)
+ return;
+
+ stats = heap_access_stats;
+
+ /* ----------------
+ * reset local counts
+ * ----------------
+ */
+ stats->local_open = 0;
+ stats->local_openr = 0;
+ stats->local_close = 0;
+ stats->local_beginscan = 0;
+ stats->local_rescan = 0;
+ stats->local_endscan = 0;
+ stats->local_getnext = 0;
+ stats->local_fetch = 0;
+ stats->local_insert = 0;
+ stats->local_delete = 0;
+ stats->local_replace = 0;
+ stats->local_markpos = 0;
+ stats->local_restrpos = 0;
+ stats->local_BufferGetRelation = 0;
+ stats->local_RelationIdGetRelation = 0;
+ stats->local_RelationIdGetRelation_Buf = 0;
+ stats->local_getreldesc = 0;
+ stats->local_heapgettup = 0;
+ stats->local_RelationPutHeapTuple = 0;
+ stats->local_RelationPutLongHeapTuple = 0;
+
+ /* ----------------
+ * reset local timestamps
+ * ----------------
+ */
+ time(&stats->local_reset_timestamp);
+ time(&stats->last_request_timestamp);
+}
+
+/* ----------------
+ * GetHeapAccessStatistics
+ * ----------------
+ */
+HeapAccessStatistics GetHeapAccessStatistics()
+{
+ HeapAccessStatistics stats;
+
+ /* ----------------
+ * return nothing if stats aren't initialized
+ * ----------------
+ */
+ if (heap_access_stats == NULL)
+ return NULL;
+
+ /* ----------------
+ * record the current request time
+ * ----------------
+ */
+ time(&heap_access_stats->last_request_timestamp);
+
+ /* ----------------
+ * allocate a copy of the stats and return it to the caller.
+ * ----------------
+ */
+ stats = (HeapAccessStatistics)
+ palloc(sizeof(HeapAccessStatisticsData));
+
+ memmove(stats,
+ heap_access_stats,
+ sizeof(HeapAccessStatisticsData));
+
+ return stats;
+}
+
+/* ----------------
+ * PrintHeapAccessStatistics
+ * ----------------
+ */
+void
+PrintHeapAccessStatistics(HeapAccessStatistics stats)
+{
+ /* ----------------
+ * return nothing if stats aren't valid
+ * ----------------
+ */
+ if (stats == NULL)
+ return;
+
+ printf("======== heap am statistics ========\n");
+ printf("init_global_timestamp: %s",
+ ctime(&(stats->init_global_timestamp)));
+
+ printf("local_reset_timestamp: %s",
+ ctime(&(stats->local_reset_timestamp)));
+
+ printf("last_request_timestamp: %s",
+ ctime(&(stats->last_request_timestamp)));
+
+ printf("local/global_open: %6d/%6d\n",
+ stats->local_open, stats->global_open);
+
+ printf("local/global_openr: %6d/%6d\n",
+ stats->local_openr, stats->global_openr);
+
+ printf("local/global_close: %6d/%6d\n",
+ stats->local_close, stats->global_close);
+
+ printf("local/global_beginscan: %6d/%6d\n",
+ stats->local_beginscan, stats->global_beginscan);
+
+ printf("local/global_rescan: %6d/%6d\n",
+ stats->local_rescan, stats->global_rescan);
+
+ printf("local/global_endscan: %6d/%6d\n",
+ stats->local_endscan, stats->global_endscan);
+
+ printf("local/global_getnext: %6d/%6d\n",
+ stats->local_getnext, stats->global_getnext);
+
+ printf("local/global_fetch: %6d/%6d\n",
+ stats->local_fetch, stats->global_fetch);
+
+ printf("local/global_insert: %6d/%6d\n",
+ stats->local_insert, stats->global_insert);
+
+ printf("local/global_delete: %6d/%6d\n",
+ stats->local_delete, stats->global_delete);
+
+ printf("local/global_replace: %6d/%6d\n",
+ stats->local_replace, stats->global_replace);
+
+ printf("local/global_markpos: %6d/%6d\n",
+ stats->local_markpos, stats->global_markpos);
+
+ printf("local/global_restrpos: %6d/%6d\n",
+ stats->local_restrpos, stats->global_restrpos);
+
+ printf("================\n");
+
+ printf("local/global_BufferGetRelation: %6d/%6d\n",
+ stats->local_BufferGetRelation,
+ stats->global_BufferGetRelation);
+
+ printf("local/global_RelationIdGetRelation: %6d/%6d\n",
+ stats->local_RelationIdGetRelation,
+ stats->global_RelationIdGetRelation);
+
+ printf("local/global_RelationIdGetRelation_Buf: %6d/%6d\n",
+ stats->local_RelationIdGetRelation_Buf,
+ stats->global_RelationIdGetRelation_Buf);
+
+ printf("local/global_getreldesc: %6d/%6d\n",
+ stats->local_getreldesc, stats->global_getreldesc);
+
+ printf("local/global_heapgettup: %6d/%6d\n",
+ stats->local_heapgettup, stats->global_heapgettup);
+
+ printf("local/global_RelationPutHeapTuple: %6d/%6d\n",
+ stats->local_RelationPutHeapTuple,
+ stats->global_RelationPutHeapTuple);
+
+ printf("local/global_RelationPutLongHeapTuple: %6d/%6d\n",
+ stats->local_RelationPutLongHeapTuple,
+ stats->global_RelationPutLongHeapTuple);
+
+ printf("===================================\n");
+
+ printf("\n");
+}
+
+/* ----------------
+ * PrintAndFreeHeapAccessStatistics
+ * ----------------
+ */
+void
+PrintAndFreeHeapAccessStatistics(HeapAccessStatistics stats)
+{
+ PrintHeapAccessStatistics(stats);
+ if (stats != NULL)
+ pfree(stats);
+}
+
+/* ----------------------------------------------------------------
+ * access method initialization
+ * ----------------------------------------------------------------
+ */
+/* ----------------
+ * initam should someday be moved someplace else.
+ * ----------------
+ */
+void
+initam()
+{
+ /* ----------------
+ * initialize heap statistics.
+ * ----------------
+ */
+ InitHeapAccessStatistics();
+}
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