Changeset: 443fa5632c09 for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=443fa5632c09
Modified Files:
gdk/gdk.h
Branch: linear-hashing
Log Message:
Increase limit of number of BATs allowed in system.
The absolute maximum (very hard limit) of the number of BATs on a 64
bit architecture was raised from 16383999 to 163839999.
diffs (39 lines):
diff --git a/gdk/gdk.h b/gdk/gdk.h
--- a/gdk/gdk.h
+++ b/gdk/gdk.h
@@ -1538,7 +1538,11 @@ typedef struct {
char bak[16]; /* logical name backup (tmp_%o) */
BAT *desc; /* the BAT descriptor */
char *options; /* A string list of options */
+#if SIZEOF_VOID_P == 4
char physical[20]; /* dir + basename for storage */
+#else
+ char physical[24]; /* dir + basename for storage */
+#endif
bat next; /* next BBP slot in linked list */
int refs; /* in-memory references on which the loaded
status of a BAT relies */
int lrefs; /* logical references on which the existence of
a BAT relies */
@@ -1547,19 +1551,20 @@ typedef struct {
} BBPrec;
gdk_export bat BBPlimit;
+#if SIZEOF_VOID_P == 4
#define N_BBPINIT 1000
-#if SIZEOF_VOID_P == 4
#define BBPINITLOG 11
#else
+#define N_BBPINIT 10000
#define BBPINITLOG 14
#endif
#define BBPINIT (1 << BBPINITLOG)
/* absolute maximum number of BATs is N_BBPINIT * BBPINIT
* this also gives the longest possible "physical" name and "bak" name
- * of a BAT: the "bak" name is "tmp_%o", so at most 12 + \0 bytes on
+ * of a BAT: the "bak" name is "tmp_%o", so at most 14 + \0 bytes on
* 64 bit architecture and 11 + \0 on 32 bit architecture; the
* physical name is a bit more complicated, but the longest possible
- * name is 17 + \0 bytes (16 + \0 on 32 bits) */
+ * name is 22 + \0 bytes (16 + \0 on 32 bits) */
gdk_export BBPrec *BBP[N_BBPINIT];
/* fast defines without checks; internal use only */
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