1 files changed, 120 insertions, 0 deletions
diff --git a/rpc/xdr/src/xdr-generic.c b/rpc/xdr/src/xdr-generic.c
new file mode 100644
index 00000000000..20b54eb0a8a
--- /dev/null
+++ b/rpc/xdr/src/xdr-generic.c
@@ -0,0 +1,120 @@
+/*
+  Copyright (c) 2007-2012 Red Hat, Inc. <http://www.redhat.com>
+  This file is part of GlusterFS.
+
+  This file is licensed to you under your choice of the GNU Lesser
+  General Public License, version 3 or any later version (LGPLv3 or
+  later), or the GNU General Public License, version 2 (GPLv2), in all
+  cases as published by the Free Software Foundation.
+*/
+
+#include "xdr-generic.h"
+
+ssize_t
+xdr_serialize_generic(struct iovec outmsg, void *res, xdrproc_t proc)
+{
+    ssize_t ret = -1;
+    XDR xdr;
+
+    if ((!outmsg.iov_base) || (!res) || (!proc))
+        return -1;
+
+    xdrmem_create(&xdr, outmsg.iov_base, (unsigned int)outmsg.iov_len,
+                  XDR_ENCODE);
+
+    if (!PROC(&xdr, res)) {
+        ret = -1;
+        goto ret;
+    }
+
+    ret = xdr_encoded_length(xdr);
+
+ret:
+    return ret;
+}
+
+ssize_t
+xdr_to_generic(struct iovec inmsg, void *args, xdrproc_t proc)
+{
+    XDR xdr;
+    ssize_t ret = -1;
+
+    if ((!inmsg.iov_base) || (!args) || (!proc))
+        return -1;
+
+    xdrmem_create(&xdr, inmsg.iov_base, (unsigned int)inmsg.iov_len,
+                  XDR_DECODE);
+
+    if (!PROC(&xdr, args)) {
+        ret = -1;
+        goto ret;
+    }
+
+    ret = xdr_decoded_length(xdr);
+ret:
+    return ret;
+}
+
+ssize_t
+xdr_to_generic_payload(struct iovec inmsg, void *args, xdrproc_t proc,
+                       struct iovec *pendingpayload)
+{
+    XDR xdr;
+    ssize_t ret = -1;
+
+    if ((!inmsg.iov_base) || (!args) || (!proc))
+        return -1;
+
+    xdrmem_create(&xdr, inmsg.iov_base, (unsigned int)inmsg.iov_len,
+                  XDR_DECODE);
+
+    if (!PROC(&xdr, args)) {
+        ret = -1;
+        goto ret;
+    }
+
+    ret = xdr_decoded_length(xdr);
+
+    if (pendingpayload) {
+        pendingpayload->iov_base = xdr_decoded_remaining_addr(xdr);
+        pendingpayload->iov_len = xdr_decoded_remaining_len(xdr);
+    }
+
+ret:
+    return ret;
+}
+
+ssize_t
+xdr_length_round_up(size_t len, size_t bufsize)
+{
+    int roundup = 0;
+
+    roundup = len % XDR_BYTES_PER_UNIT;
+    if (roundup > 0)
+        roundup = XDR_BYTES_PER_UNIT - roundup;
+
+    if ((roundup > 0) && ((roundup + len) <= bufsize))
+        len += roundup;
+
+    return len;
+}
+
+int
+xdr_bytes_round_up(struct iovec *vec, size_t bufsize)
+{
+    vec->iov_len = xdr_length_round_up(vec->iov_len, bufsize);
+    return 0;
+}
+
+void
+xdr_vector_round_up(struct iovec *vec, int vcount, uint32_t count)
+{
+    uint32_t round_count = 0;
+
+    round_count = xdr_length_round_up(count, 1048576);
+    round_count -= count;
+    if (round_count == 0 || vcount <= 0)
+        return;
+
+    vec[vcount - 1].iov_len += round_count;
+}