1 files changed, 76 insertions, 0 deletions
diff --git a/storage/bdb/mp/mp_register.c b/storage/bdb/mp/mp_register.c
new file mode 100644
index 00000000000..46eefad986f
--- /dev/null
+++ b/storage/bdb/mp/mp_register.c
@@ -0,0 +1,76 @@
+/*-
+ * See the file LICENSE for redistribution information.
+ *
+ * Copyright (c) 1996-2002
+ *	Sleepycat Software.  All rights reserved.
+ */
+#include "db_config.h"
+
+#ifndef lint
+static const char revid[] = "$Id: mp_register.c,v 11.21 2002/03/27 04:32:27 bostic Exp $";
+#endif /* not lint */
+
+#ifndef NO_SYSTEM_INCLUDES
+#include <sys/types.h>
+#endif
+
+#include "db_int.h"
+#include "dbinc/db_shash.h"
+#include "dbinc/mp.h"
+
+/*
+ * memp_register --
+ *	Register a file type's pgin, pgout routines.
+ *
+ * PUBLIC: int __memp_register __P((DB_ENV *, int,
+ * PUBLIC:     int (*)(DB_ENV *, db_pgno_t, void *, DBT *),
+ * PUBLIC:     int (*)(DB_ENV *, db_pgno_t, void *, DBT *)));
+ */
+int
+__memp_register(dbenv, ftype, pgin, pgout)
+	DB_ENV *dbenv;
+	int ftype;
+	int (*pgin) __P((DB_ENV *, db_pgno_t, void *, DBT *));
+	int (*pgout) __P((DB_ENV *, db_pgno_t, void *, DBT *));
+{
+	DB_MPOOL *dbmp;
+	DB_MPREG *mpreg;
+	int ret;
+
+	PANIC_CHECK(dbenv);
+	ENV_REQUIRES_CONFIG(dbenv,
+	    dbenv->mp_handle, "DB_ENV->memp_register", DB_INIT_MPOOL);
+
+	dbmp = dbenv->mp_handle;
+
+	/*
+	 * Chances are good that the item has already been registered, as the
+	 * DB access methods are the folks that call this routine.  If already
+	 * registered, just update the entry, although it's probably unchanged.
+	 */
+	MUTEX_THREAD_LOCK(dbenv, dbmp->mutexp);
+	for (mpreg = LIST_FIRST(&dbmp->dbregq);
+	    mpreg != NULL; mpreg = LIST_NEXT(mpreg, q))
+		if (mpreg->ftype == ftype) {
+			mpreg->pgin = pgin;
+			mpreg->pgout = pgout;
+			break;
+		}
+	MUTEX_THREAD_UNLOCK(dbenv, dbmp->mutexp);
+	if (mpreg != NULL)
+		return (0);
+
+	/* New entry. */
+	if ((ret = __os_malloc(dbenv, sizeof(DB_MPREG), &mpreg)) != 0)
+		return (ret);
+
+	mpreg->ftype = ftype;
+	mpreg->pgin = pgin;
+	mpreg->pgout = pgout;
+
+	MUTEX_THREAD_LOCK(dbenv, dbmp->mutexp);
+	LIST_INSERT_HEAD(&dbmp->dbregq, mpreg, q);
+	MUTEX_THREAD_UNLOCK(dbenv, dbmp->mutexp);
+
+	return (0);
+}