Import TBBT (NFS trace replay).

[bluesky.git] / TBBT / trace_play / rpc / rpc_dtablesize.c

diff --git a/TBBT/trace_play/rpc/rpc_dtablesize.c b/TBBT/trace_play/rpc/rpc_dtablesize.c
new file mode 100755 (executable)
index 0000000..8c1d9f9
--- /dev/null
+++ b/TBBT/trace_play/rpc/rpc_dtablesize.c
@@ -0,0 +1,114 @@
+#ifndef lint
+static char sfs_clnt_id[] = "@(#)rpc_dtablesize.c     2.1     97/10/23";
+#endif
+/* @(#)rpc_dtablesize.c        2.1 88/07/29 4.0 RPCSRC */
+/*
+ *   Copyright (c) 1992-1997,2001 by Standard Performance Evaluation Corporation
+ *     All rights reserved.
+ *             Standard Performance Evaluation Corporation (SPEC)
+ *             6585 Merchant Place, Suite 100
+ *             Warrenton, VA 20187
+ *
+ *     This product contains benchmarks acquired from several sources who
+ *     understand and agree with SPEC's goal of creating fair and objective
+ *     benchmarks to measure computer performance.
+ *
+ *     This copyright notice is placed here only to protect SPEC in the
+ *     event the source is misused in any manner that is contrary to the
+ *     spirit, the goals and the intent of SPEC.
+ *
+ *     The source code is provided to the user or company under the license
+ *     agreement for the SPEC Benchmark Suite for this product.
+ */
+/*
+ * Sun RPC is a product of Sun Microsystems, Inc. and is provided for
+ * unrestricted use provided that this legend is included on all tape
+ * media and as a part of the software program in whole or part.  Users
+ * may copy or modify Sun RPC without charge, but are not authorized
+ * to license or distribute it to anyone else except as part of a product or
+ * program developed by the user.
+ * 
+ * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE
+ * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.
+ * 
+ * Sun RPC is provided with no support and without any obligation on the
+ * part of Sun Microsystems, Inc. to assist in its use, correction,
+ * modification or enhancement.
+ * 
+ * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE
+ * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC
+ * OR ANY PART THEREOF.
+ * 
+ * In no event will Sun Microsystems, Inc. be liable for any lost revenue
+ * or profits or other special, indirect and consequential damages, even if
+ * Sun has been advised of the possibility of such damages.
+ * 
+ * Sun Microsystems, Inc.
+ * 2550 Garcia Avenue
+ * Mountain View, California  94043
+ */
+#if !defined(lint) && defined(SCCSIDS)
+static char sccsid[] = "@(#)rpc_dtablesize.c 1.2 87/08/11 Copyr 1987 Sun Micro";
+#endif
+
+
+/*
+ * Cache the result of getdtablesize(), so we don't have to do an
+ * expensive system call every time.
+ */
+
+#if !(defined(USE_GETDTABLESIZE) || defined(USE_GETRLIMIT) || defined(USE_NOFILE))
+#define USE_GETDTABLESIZE
+#endif
+
+#ifdef USE_GETDTABLESIZE
+#include <unistd.h>
+
+int
+_rpc_dtablesize(void)
+{
+       static int size = 0;
+       
+       if (size == 0) {
+               size = getdtablesize();
+#ifdef FD_SETSIZE
+               /*
+                * FreeBSD select() produces a segmentation violation if
+                * the argument is larger than FD_SETSIZE.
+                */
+               if (size > FD_SETSIZE) {
+                       size = FD_SETSIZE;
+               }
+#endif /* def FD_SETSIZE */
+       }
+       return (size);
+}
+#endif
+
+#ifdef USE_GETRLIMIT
+#include <sys/resource.h>
+
+int
+_rpc_dtablesize(void)
+{
+       static int size = 0;
+       struct rlimit rlimit;
+
+       if (size == 0) {
+               (void)getrlimit(RLIMIT_NOFILE, &rlimit);
+               size = (int) rlimit.rlim_cur;
+       }
+       return (size);
+}
+#endif
+
+#ifdef USE_NOFILE
+#include <sys/param.h>
+
+int
+_rpc_dtablesize(void)
+{
+       return (NOFILE);
+}
+#endif