misc: deprecate VOM

[vpp.git] / extras / deprecated / vom / vom / hw.cpp

diff --git a/extras/deprecated/vom/vom/hw.cpp b/extras/deprecated/vom/vom/hw.cpp
new file mode 100644 (file)
index 0000000..932a014
--- /dev/null
+++ b/extras/deprecated/vom/vom/hw.cpp
@@ -0,0 +1,306 @@
+/*
+ * 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.
+ */
+
+#include "vom/hw.hpp"
+#include "vom/hw_cmds.hpp"
+#include "vom/logger.hpp"
+#include "vom/stat_reader.hpp"
+
+namespace VOM {
+HW::cmd_q::cmd_q()
+  : m_enabled(true)
+  , m_connected(false)
+  , m_conn()
+{
+}
+
+HW::cmd_q::~cmd_q()
+{
+}
+
+HW::cmd_q&
+HW::cmd_q::operator=(const HW::cmd_q& f)
+{
+  return (*this);
+}
+
+/**
+ * Run the connect/dispatch thread.
+ */
+void
+HW::cmd_q::rx_run()
+{
+  while (m_connected) {
+    m_conn.ctx().dispatch();
+  }
+}
+
+void
+HW::cmd_q::enqueue(cmd* c)
+{
+  std::shared_ptr<cmd> sp(c);
+
+  m_queue.push_back(sp);
+}
+
+void
+HW::cmd_q::enqueue(std::shared_ptr<cmd> c)
+{
+  m_queue.push_back(c);
+}
+
+void
+HW::cmd_q::enqueue(std::queue<cmd*>& cmds)
+{
+  while (cmds.size()) {
+    std::shared_ptr<cmd> sp(cmds.front());
+
+    m_queue.push_back(sp);
+    cmds.pop();
+  }
+}
+
+bool
+HW::cmd_q::connect()
+{
+  if (m_connected)
+    return m_connected;
+
+  if (0 == m_conn.connect()) {
+    m_connected = true;
+    m_rx_thread.reset(new std::thread(&HW::cmd_q::rx_run, this));
+  }
+  return (m_connected);
+}
+
+void
+HW::cmd_q::disconnect()
+{
+
+  if (!m_connected)
+    return;
+
+  m_connected = false;
+
+  if (m_rx_thread && m_rx_thread->joinable()) {
+    m_rx_thread->join();
+  }
+
+  m_conn.disconnect();
+}
+
+void
+HW::cmd_q::enable()
+{
+  m_enabled = true;
+}
+
+void
+HW::cmd_q::disable()
+{
+  m_enabled = false;
+}
+
+rc_t
+HW::cmd_q::write()
+{
+  rc_t rc = rc_t::OK;
+
+  /*
+   * The queue is enabled, Execute each command in the queue.
+   * If one execution fails, abort the rest
+   */
+  auto it = m_queue.begin();
+
+  while (it != m_queue.end()) {
+    std::shared_ptr<cmd> c = *it;
+
+    VOM_LOG(log_level_t::DEBUG) << *c;
+
+    if (m_enabled) {
+      /*
+       * before we issue the command we must move it to the pending
+       * store
+       * ince a async event can be recieved before the command
+       * completes
+       */
+      rc = c->issue(m_conn);
+
+      if (rc_t::OK == rc) {
+        /*
+         * move to the next
+         */
+      } else {
+        /*
+         * barf out without issuing the rest
+         */
+        VOM_LOG(log_level_t::ERROR) << "Failed to execute: " << c->to_string();
+        break;
+      }
+    } else {
+      /*
+       * The HW is disabled, so set each command as succeeded
+       */
+      c->succeeded();
+    }
+
+    ++it;
+  }
+
+  /*
+   * erase all objects in the queue
+   */
+  m_queue.erase(m_queue.begin(), m_queue.end());
+
+  return (rc);
+}
+
+/*
+ * The single Command Queue
+ */
+HW::cmd_q* HW::m_cmdQ;
+
+/*
+ * single stat reader
+ */
+stat_reader* HW::m_statReader;
+HW::item<bool> HW::m_poll_state;
+
+/**
+ * Initialse the connection to VPP
+ */
+void
+HW::init(HW::cmd_q* f)
+{
+  m_cmdQ = f;
+  m_statReader = new stat_reader();
+}
+
+/**
+ * Initialse the connection to VPP
+ */
+void
+HW::init(HW::cmd_q* f, stat_reader* s)
+{
+  m_cmdQ = f;
+  m_statReader = s;
+}
+
+/**
+ * Initialse the connection to VPP
+ */
+void
+HW::init()
+{
+  m_cmdQ = new cmd_q();
+  m_statReader = new stat_reader();
+}
+
+void
+HW::enqueue(cmd* cmd)
+{
+  m_cmdQ->enqueue(cmd);
+}
+
+void
+HW::enqueue(std::shared_ptr<cmd> cmd)
+{
+  m_cmdQ->enqueue(cmd);
+}
+
+void
+HW::enqueue(std::queue<cmd*>& cmds)
+{
+  m_cmdQ->enqueue(cmds);
+}
+
+bool
+HW::connect()
+{
+  return (m_cmdQ->connect() && m_statReader->connect());
+}
+
+void
+HW::disconnect()
+{
+  m_statReader->disconnect();
+  m_cmdQ->disconnect();
+}
+
+void
+HW::enable()
+{
+  m_cmdQ->enable();
+}
+
+void
+HW::disable()
+{
+  m_cmdQ->disable();
+}
+
+rc_t
+HW::write()
+{
+  return (m_cmdQ->write());
+}
+
+bool
+HW::poll()
+{
+  std::shared_ptr<cmd> poll(new hw_cmds::poll(m_poll_state));
+
+  HW::enqueue(poll);
+  HW::write();
+
+  return (m_poll_state);
+}
+
+void
+HW::read_stats()
+{
+  m_statReader->read();
+}
+
+template <>
+std::string
+HW::item<bool>::to_string() const
+{
+  std::ostringstream os;
+
+  os << "hw-item:["
+     << "rc:" << item_rc.to_string() << " data:" << item_data << "]";
+  return (os.str());
+}
+
+template <>
+std::string
+HW::item<unsigned int>::to_string() const
+{
+  std::ostringstream os;
+
+  os << "hw-item:["
+     << "rc:" << item_rc.to_string() << " data:" << item_data << "]";
+  return (os.str());
+}
+}
+
+/*
+ * fd.io coding-style-patch-verification: OFF
+ *
+ * Local Variables:
+ * eval: (c-set-style "mozilla")
+ * End:
+ */