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Diffstat (limited to 'debian/htdig/htdig-3.2.0b6/db/hash_conv.c')
-rw-r--r--debian/htdig/htdig-3.2.0b6/db/hash_conv.c110
1 files changed, 110 insertions, 0 deletions
diff --git a/debian/htdig/htdig-3.2.0b6/db/hash_conv.c b/debian/htdig/htdig-3.2.0b6/db/hash_conv.c
new file mode 100644
index 00000000..4562d8a4
--- /dev/null
+++ b/debian/htdig/htdig-3.2.0b6/db/hash_conv.c
@@ -0,0 +1,110 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1996, 1997, 1998, 1999
+ * Sleepycat Software. All rights reserved.
+ */
+#include "db_config.h"
+
+#ifndef lint
+static const char sccsid[] = "@(#)hash_conv.c 11.1 (Sleepycat) 7/24/99";
+#endif /* not lint */
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+#endif
+
+#include "db_int.h"
+#include "db_page.h"
+#include "db_swap.h"
+#include "hash.h"
+
+/*
+ * CDB___ham_pgin --
+ * Convert host-specific page layout from the host-independent format
+ * stored on disk.
+ *
+ * PUBLIC: int CDB___ham_pgin __P((db_pgno_t, void *, DBT *));
+ */
+int
+CDB___ham_pgin(pg, pp, cookie)
+ db_pgno_t pg;
+ void *pp;
+ DBT *cookie;
+{
+ DB_PGINFO *pginfo;
+ PAGE *h;
+
+ h = pp;
+ pginfo = (DB_PGINFO *)cookie->data;
+
+ /*
+ * The hash access method does blind reads of pages, causing them
+ * to be created. If the type field isn't set it's one of them,
+ * initialize the rest of the page and return.
+ */
+ if (h->type == 0) {
+ P_INIT(pp, pginfo->db_pagesize,
+ pg, PGNO_INVALID, PGNO_INVALID, 0, P_HASH);
+ return (0);
+ }
+
+ if (!pginfo->needswap)
+ return (0);
+
+ return (h->type == P_HASHMETA ?
+ CDB___ham_mswap(pp) : CDB___db_byteswap(pg, pp, pginfo->db_pagesize, 1));
+}
+
+/*
+ * CDB___ham_pgout --
+ * Convert host-specific page layout to the host-independent format
+ * stored on disk.
+ *
+ * PUBLIC: int CDB___ham_pgout __P((db_pgno_t, void *, DBT *));
+ */
+int
+CDB___ham_pgout(pg, pp, cookie)
+ db_pgno_t pg;
+ void *pp;
+ DBT *cookie;
+{
+ DB_PGINFO *pginfo;
+ PAGE *h;
+
+ pginfo = (DB_PGINFO *)cookie->data;
+ if (!pginfo->needswap)
+ return (0);
+
+ h = pp;
+ return (h->type == P_HASHMETA ?
+ CDB___ham_mswap(pp) : CDB___db_byteswap(pg, pp, pginfo->db_pagesize, 0));
+}
+
+/*
+ * CDB___ham_mswap --
+ * Swap the bytes on the hash metadata page.
+ *
+ * PUBLIC: int CDB___ham_mswap __P((void *));
+ */
+int
+CDB___ham_mswap(pg)
+ void *pg;
+{
+ u_int8_t *p;
+ int i;
+
+ CDB___db_metaswap(pg);
+
+ p = (u_int8_t *)pg + sizeof(DBMETA);
+
+ SWAP32(p); /* max_bucket */
+ SWAP32(p); /* high_mask */
+ SWAP32(p); /* low_mask */
+ SWAP32(p); /* ffactor */
+ SWAP32(p); /* nelem */
+ SWAP32(p); /* h_charkey */
+ for (i = 0; i < NCACHED; ++i)
+ SWAP32(p); /* spares */
+ return (0);
+}