aboutsummaryrefslogtreecommitdiffstats
path: root/src/vpp-api/vom/dump_cmd.hpp
diff options
context:
space:
mode:
authorNeale Ranns <neale.ranns@cisco.com>2017-10-16 04:20:13 -0700
committerDamjan Marion <dmarion.lists@gmail.com>2017-11-01 09:28:06 +0000
commit812ed39f9da336310e815c361ab5a9f118657d94 (patch)
tree9d8cddc917acbb65b3dc401d880d5eb2a7f392c6 /src/vpp-api/vom/dump_cmd.hpp
parent14edd97c20735ffd1c24000a7df78e154ac61478 (diff)
VPP Object Model (VOM)
The VOM is a C++ library for use by clients/agents of VPP for programming state. It uses the binary APIs to do so. Various other common client side functions are also provided. Please see om.hpp for a more detailed description. Change-Id: Ib756bfe99817093815a9e26ccf464aa5583fc523 Signed-off-by: Neale Ranns <neale.ranns@cisco.com> Co-authored-by: Mohsin Kazmi <sykazmi@cisco.com>
Diffstat (limited to 'src/vpp-api/vom/dump_cmd.hpp')
-rw-r--r--src/vpp-api/vom/dump_cmd.hpp134
1 files changed, 134 insertions, 0 deletions
diff --git a/src/vpp-api/vom/dump_cmd.hpp b/src/vpp-api/vom/dump_cmd.hpp
new file mode 100644
index 00000000000..cc255ac0daf
--- /dev/null
+++ b/src/vpp-api/vom/dump_cmd.hpp
@@ -0,0 +1,134 @@
+/*
+ * Copyright (c) 2017 Cisco and/or its affiliates.
+ * Licensed 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.
+ */
+
+#ifndef __VOM_DUMP_CMD_H__
+#define __VOM_DUMP_CMD_H__
+
+#include <future>
+
+#include "vom/cmd.hpp"
+#include "vom/hw.hpp"
+
+#include <vapi/vapi.hpp>
+
+namespace VOM {
+/**
+ * A function type def for calculating a message's size
+ */
+typedef unsigned int (*get_msg_size_t)(void*);
+
+/**
+ * A base class for VPP dump commands.
+ * Dump commands are one of the sub-set of command types to VPP. Here the
+ * client
+ * makes a read request on the resource and VPP responds with all the
+ * records.
+ * This command is executed synchronously. Once complete the client can
+ * 'pop'
+ * the records from the command object
+ */
+template <typename MSG>
+class dump_cmd : public cmd
+{
+public:
+ typedef MSG msg_t;
+ typedef typename MSG::resp_type record_t;
+
+ typedef typename vapi::Result_set<typename MSG::resp_type>::const_iterator
+ const_iterator;
+
+ /**
+ * Default Constructor
+ */
+ dump_cmd()
+ : cmd()
+ {
+ }
+
+ /**
+ * Destructor
+ */
+ virtual ~dump_cmd() {}
+
+ const_iterator begin() { return (m_dump->get_result_set().begin()); }
+
+ const_iterator end() { return (m_dump->get_result_set().end()); }
+
+ /**
+ * Wait for the issue of the command to complete
+ */
+ rc_t wait()
+ {
+ std::future_status status;
+ std::future<rc_t> result;
+
+ result = m_promise.get_future();
+ status = result.wait_for(std::chrono::seconds(5));
+
+ if (status != std::future_status::ready) {
+ return (rc_t::TIMEOUT);
+ }
+
+ return (result.get());
+ }
+
+ /**
+ * Call operator called when the dump is complete
+ */
+ vapi_error_e operator()(MSG& d)
+ {
+ m_promise.set_value(rc_t::OK);
+
+ return (VAPI_OK);
+ }
+
+ /**
+ * Retire/cancel a long running command
+ */
+ virtual void retire(connection& con) {}
+
+protected:
+ /**
+ * The underlying promise that implements the synchornous nature
+ * of the command issue
+ */
+ std::promise<rc_t> m_promise;
+
+ /**
+ * Dump commands should not be issued whilst the HW is disabled
+ */
+ void succeeded() {}
+
+ /**
+ * The HW::cmd_q is a friend so it can call suceedded.
+ */
+ friend class HW::cmd_q;
+
+ /**
+ * The VAPI event registration
+ */
+ std::unique_ptr<MSG> m_dump;
+};
+};
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "mozilla")
+ * End:
+ */
+
+#endif