Initial revision

1 files changed, 94 insertions, 0 deletions

diff --git a/src/gdbmsetopt.c b/src/gdbmsetopt.c
new file mode 100644
index 0000000..cbc2df3
--- /dev/null
+++ b/src/gdbmsetopt.c
@@ -0,0 +1,94 @@
+/* gdbmsetopt.c - set options pertaining to a GDBM descriptor. */
+
+/* This file is part of GDBM, the GNU data base manager.
+   Copyright (C) 1993, 1994, 2007  Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+/* Include system configuration before all else. */
+#include "autoconf.h"
+
+#include "gdbmdefs.h"
+#include "gdbmerrno.h"
+
+/* operate on an already open descriptor. */
+
+/* ARGSUSED */
+int
+gdbm_setopt(gdbm_file_info *dbf, int optflag, int *optval, int optlen)
+{
+  switch(optflag)
+    {
+      case GDBM_CACHESIZE:
+        /* Optval will point to the new size of the cache. */
+        if (dbf->bucket_cache != NULL)
+          {
+            gdbm_errno = GDBM_OPT_ALREADY_SET;
+            return -1;
+          }
+
+        return _gdbm_init_cache(dbf, ((*optval) > 9) ? (*optval) : 10);
+
+      case GDBM_FASTMODE:
+      	/* Obsolete form of SYNCMODE. */
+	if ((*optval != TRUE) && (*optval != FALSE))
+	  {
+	    gdbm_errno = GDBM_OPT_ILLEGAL;
+	    return -1;
+	  }
+
+	dbf->fast_write = *optval;
+	break;
+
+      case GDBM_SYNCMODE:
+      	/* Optval will point to either true or false. */
+	if ((*optval != TRUE) && (*optval != FALSE))
+	  {
+	    gdbm_errno = GDBM_OPT_ILLEGAL;
+	    return -1;
+	  }
+
+	dbf->fast_write = !(*optval);
+	break;
+
+      case GDBM_CENTFREE:
+      	/* Optval will point to either true or false. */
+	if ((*optval != TRUE) && (*optval != FALSE))
+	  {
+	    gdbm_errno = GDBM_OPT_ILLEGAL;
+	    return -1;
+	  }
+
+	dbf->fast_write = *optval;
+	break;
+
+      case GDBM_COALESCEBLKS:
+      	/* Optval will point to either true or false. */
+	if ((*optval != TRUE) && (*optval != FALSE))
+	  {
+	    gdbm_errno = GDBM_OPT_ILLEGAL;
+	    return -1;
+	  }
+
+	dbf->fast_write = *optval;
+	break;
+
+      default:
+        gdbm_errno = GDBM_OPT_ILLEGAL;
+        return -1;
+    }
+
+  return 0;
+}