NO-JIRA: create branch for qpid-cpp 0.34 RC process

git-svn-id: https://svn.apache.org/repos/asf/qpid/branches/qpid-cpp-0.34-rc@1687469 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 125 insertions, 0 deletions

diff --git a/qpid/cpp/src/qpid/legacystore/jrnl/rrfc.cpp b/qpid/cpp/src/qpid/legacystore/jrnl/rrfc.cpp
new file mode 100644
index 0000000000..fc6f5d427f
--- /dev/null
+++ b/qpid/cpp/src/qpid/legacystore/jrnl/rrfc.cpp
@@ -0,0 +1,125 @@
+/*
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+
+/**
+ * \file rrfc.cpp
+ *
+ * Qpid asynchronous store plugin library
+ *
+ * File containing code for class mrg::journal::rrfc (rotating
+ * file controller). See comments in file rrfc.h for details.
+ *
+ * \author Kim van der Riet
+ */
+
+
+#include "qpid/legacystore/jrnl/rrfc.h"
+
+#include <cerrno>
+#include <fcntl.h>
+#include <unistd.h>
+#include "qpid/legacystore/jrnl/jerrno.h"
+#include "qpid/legacystore/jrnl/jexception.h"
+
+namespace mrg
+{
+namespace journal
+{
+
+rrfc::rrfc(const lpmgr* lpmp): rfc(lpmp), _fh(-1), _valid(false)
+{}
+
+rrfc::~rrfc()
+{
+    close_fh();
+}
+
+void
+rrfc::finalize()
+{
+    unset_findex();
+    rfc::finalize();
+}
+
+void
+rrfc::set_findex(const u_int16_t fc_index)
+{
+    rfc::set_findex(fc_index);
+    open_fh(_curr_fc->fname());
+}
+
+void
+rrfc::unset_findex()
+{
+    set_invalid();
+    close_fh();
+    rfc::unset_findex();
+}
+
+iores
+rrfc::rotate()
+{
+    if (!_lpmp->num_jfiles())
+        throw jexception(jerrno::JERR__NINIT, "rrfc", "rotate");
+    u_int16_t next_fc_index = _fc_index + 1;
+    if (next_fc_index == _lpmp->num_jfiles())
+        next_fc_index = 0;
+    set_findex(next_fc_index);
+    return RHM_IORES_SUCCESS;
+}
+
+std::string
+rrfc::status_str() const
+{
+    std::ostringstream oss;
+    oss << "rrfc: " << rfc::status_str();
+    if (is_active())
+        oss << " fcntl[" << _fc_index << "]: " << _curr_fc->status_str();
+    return oss.str();
+}
+
+// === protected functions ===
+
+void
+rrfc::open_fh(const std::string& fn)
+{
+    close_fh();
+    _fh = ::open(fn.c_str(), O_RDONLY | O_DIRECT);
+    if (_fh < 0)
+    {
+        std::ostringstream oss;
+        oss << "file=\"" << fn << "\"" << FORMAT_SYSERR(errno);
+        throw jexception(jerrno::JERR_RRFC_OPENRD, oss.str(), "rrfc", "open_fh");
+    }
+}
+
+void
+rrfc::close_fh()
+{
+    if (_fh >= 0)
+    {
+        ::close(_fh);
+        _fh = -1;
+    }
+}
+
+} // namespace journal
+} // namespace mrg