1 files changed, 220 insertions, 0 deletions
diff --git a/src/stateless/cp/trex_dp_port_events.cpp b/src/stateless/cp/trex_dp_port_events.cpp
new file mode 100644
index 00000000..ba327e59
--- /dev/null
+++ b/src/stateless/cp/trex_dp_port_events.cpp
@@ -0,0 +1,220 @@
+/*
+ Itay Marom
+ Cisco Systems, Inc.
+*/
+
+/*
+Copyright (c) 2015-2015 Cisco Systems, Inc.
+
+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 <trex_dp_port_events.h>
+#include <sstream>
+#include <os_time.h>
+#include <trex_stateless.h>
+
+/**
+ * port events
+ */
+void 
+TrexDpPortEvents::create(TrexStatelessPort *port) {
+    m_port = port;
+
+    for (int i = 0; i < TrexDpPortEvent::EVENT_MAX; i++) {
+        m_events[i].create((TrexDpPortEvent::event_e) i, port);
+    }
+
+    m_event_id_counter = EVENT_ID_INVALID;
+}
+
+/**
+ * generate a new event ID
+ * 
+ */
+int
+TrexDpPortEvents::generate_event_id() {
+    return (++m_event_id_counter);
+}
+
+/**
+ * mark the next allowed event 
+ * all other events will be disabled 
+ * 
+ */
+void
+TrexDpPortEvents::wait_for_event(TrexDpPortEvent::event_e ev, int event_id, int timeout_ms) {
+
+    /* first disable all events */
+    for (TrexDpPortEvent & e : m_events) {
+        e.disable();
+    }
+
+    /* mark this event as allowed */
+    m_events[ev].wait_for_event(event_id, timeout_ms);
+}
+
+void 
+TrexDpPortEvents::disable(TrexDpPortEvent::event_e ev) {
+    m_events[ev].disable();
+}
+
+/**
+ * handle an event
+ * 
+ */
+void 
+TrexDpPortEvents::handle_event(TrexDpPortEvent::event_e ev, int thread_id, int event_id) {
+    m_events[ev].handle_event(thread_id, event_id);
+}
+
+/*********** 
+ * single event object
+ * 
+ */
+
+void
+TrexDpPortEvent::create(event_e type, TrexStatelessPort *port) {
+    m_event_type = type;
+    m_port = port;
+
+    /* add the core ids to the hash */
+    m_signal.clear();
+    for (int core_id : m_port->get_core_id_list()) {
+        m_signal[core_id] = false;
+    }
+
+    /* event is disabled */
+    disable();
+}
+
+
+/**
+ * wait the event using event id and timeout
+ * 
+ */
+void
+TrexDpPortEvent::wait_for_event(int event_id, int timeout_ms) {
+
+    /* set a new event id */
+    m_event_id = event_id;
+
+    /* do we have a timeout ? */
+    if (timeout_ms > 0) {
+        m_expire_limit_ms = os_get_time_msec() + timeout_ms;
+    } else {
+        m_expire_limit_ms = -1;
+    }
+
+    /* prepare the signal array */
+    m_pending_cnt = 0;
+    for (auto & core_pair : m_signal) {
+        core_pair.second = false;
+        m_pending_cnt++;
+    }
+}
+
+void
+TrexDpPortEvent::disable() {
+    m_event_id = TrexDpPortEvents::EVENT_ID_INVALID;
+}
+
+/**
+ * get the event status
+ * 
+ */
+
+TrexDpPortEvent::event_status_e
+TrexDpPortEvent::status() {
+
+    /* is it even active ? */
+    if (m_event_id == TrexDpPortEvents::EVENT_ID_INVALID) {
+        return (EVENT_DISABLE);
+    }
+
+    /* did it occured ? */
+    if (m_pending_cnt == 0) {
+        return (EVENT_OCCURED);
+    }
+
+    /* so we are enabled and the event did not occur - maybe we timed out ? */
+    if ( (m_expire_limit_ms > 0) && (os_get_time_msec() > m_expire_limit_ms) ) {
+        return (EVENT_TIMED_OUT);
+    }
+
+    /* so we are still waiting... */
+    return (EVENT_PENDING);
+
+}
+
+void
+TrexDpPortEvent::err(int thread_id, int event_id, const std::string &err_msg)  {
+    std::stringstream err;
+    err << "DP event '" << event_name(m_event_type)  << "' on thread id '" << thread_id << "' with key '" << event_id <<"' - ";
+}
+
+/**
+ * event occured
+ * 
+ */
+void 
+TrexDpPortEvent::handle_event(int thread_id, int event_id) {
+
+    /* if the event is disabled - we don't care */
+    if (!is_active()) {
+        return;
+    }
+
+    /* check the event id is matching the required event - if not maybe its an old signal */
+    if (event_id != m_event_id) {
+        return;
+    }
+
+    /* mark sure no double signal */
+    if (m_signal.at(thread_id)) {
+        err(thread_id, event_id, "double signal");
+
+    } else {
+        /* mark */
+        m_signal.at(thread_id) = true;
+        m_pending_cnt--;
+    }
+
+    /* event occured */
+    if (m_pending_cnt == 0) {
+        m_port->on_dp_event_occured(m_event_type);
+        m_event_id = TrexDpPortEvents::EVENT_ID_INVALID;
+    }
+}
+
+bool
+TrexDpPortEvent::is_active() {
+    return (status() != EVENT_DISABLE);
+}
+
+bool 
+TrexDpPortEvent::has_timeout_expired() {
+    return (status() == EVENT_TIMED_OUT);
+}
+
+const char *
+TrexDpPortEvent::event_name(event_e type) {
+    switch (type) {
+    case EVENT_STOP:
+        return "DP STOP";
+
+    default:
+        throw TrexException("unknown event type");
+    }
+
+}