systemc: Add stubbed out versions of sc_event and related classes.

Change-Id: Id45c80cbb8774d8469d4df6ce7915161df977de0
Reviewed-on: https://gem5-review.googlesource.com/10828
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>

3 files changed, 452 insertions, 0 deletions

diff --git a/src/systemc/SConscript b/src/systemc/SConscript
index 976c34410..2a96193f5 100644
--- a/src/systemc/SConscript
+++ b/src/systemc/SConscript
@@ -32,6 +32,7 @@ if env['USE_SYSTEMC']:
 
     Source('kernel.cc')
 
+    Source('sc_event.cc')
     Source('sc_interface.cc')
     Source('sc_main.cc')
     Source('sc_module_name.cc')
diff --git a/src/systemc/sc_event.cc b/src/systemc/sc_event.cc
new file mode 100644
index 000000000..a96d5f31f
--- /dev/null
+++ b/src/systemc/sc_event.cc
@@ -0,0 +1,317 @@
+/*
+ * Copyright 2018 Google, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Gabe Black
+ */
+
+#include "systemc/sc_event.hh"
+
+#include "base/logging.hh"
+
+namespace sc_core
+{
+
+sc_event_and_list::sc_event_and_list()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+sc_event_and_list::sc_event_and_list(const sc_event_and_list &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+sc_event_and_list::sc_event_and_list(const sc_event &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+sc_event_and_list &
+sc_event_and_list::operator = (const sc_event_and_list &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return *this;
+}
+
+int
+sc_event_and_list::size() const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return 0;
+}
+
+void
+sc_event_and_list::swap(sc_event_and_list &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+sc_event_and_list &
+sc_event_and_list::operator &= (const sc_event &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return *this;
+}
+
+sc_event_and_list &
+sc_event_and_list::operator &= (const sc_event_and_list &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return *this;
+}
+
+sc_event_and_expr
+sc_event_and_list::operator & (const sc_event &) const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return sc_event_and_expr();
+}
+
+sc_event_and_expr
+sc_event_and_list::operator & (const sc_event_and_list &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return sc_event_and_expr();
+}
+
+sc_event_or_list::sc_event_or_list()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+sc_event_or_list::sc_event_or_list(const sc_event_or_list &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+sc_event_or_list::sc_event_or_list(const sc_event &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+sc_event_or_list&
+sc_event_or_list::operator = (const sc_event_or_list &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return *this;
+}
+
+sc_event_or_list::~sc_event_or_list()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+int
+sc_event_or_list::size() const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return 0;
+}
+
+void
+sc_event_or_list::swap(sc_event_or_list &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+sc_event_or_list &
+sc_event_or_list::operator |= (const sc_event &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return *this;
+}
+
+sc_event_or_list &
+sc_event_or_list::operator |= (const sc_event_or_list &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return *this;
+}
+
+sc_event_or_expr
+sc_event_or_list::operator | (const sc_event &) const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return sc_event_or_expr();
+}
+
+sc_event_or_expr
+sc_event_or_list::operator | (const sc_event_or_list &) const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return sc_event_or_expr();
+}
+
+sc_event_and_expr::operator const sc_event_and_list &() const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return *(const sc_event_and_list *)nullptr;
+}
+
+sc_event_and_expr
+operator & (sc_event_and_expr expr, sc_event const &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return expr;
+}
+
+sc_event_and_expr
+operator & (sc_event_and_expr expr, sc_event_and_list const &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return expr;
+}
+
+sc_event_or_expr::operator const sc_event_or_list &() const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return *(const sc_event_or_list *)nullptr;
+}
+
+sc_event_or_expr
+operator | (sc_event_or_expr expr, sc_event const &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return expr;
+}
+
+sc_event_or_expr
+operator | (sc_event_or_expr expr, sc_event_or_list const &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return expr;
+}
+
+sc_event::sc_event()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+sc_event::sc_event(const char *)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+sc_event::~sc_event()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+const char *
+sc_event::name() const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return "";
+}
+
+const char *
+sc_event::basename() const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return "";
+}
+
+bool
+sc_event::in_hierarchy() const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return false;
+}
+
+sc_object *
+sc_event::get_parent_object() const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return (sc_object *)nullptr;
+}
+
+void
+sc_event::notify()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_event::notify(const sc_time &)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_event::notify(double, sc_time_unit)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_event::cancel()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+sc_event_and_expr
+sc_event::operator & (const sc_event &) const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return sc_event_and_expr();
+}
+
+sc_event_and_expr
+sc_event::operator & (const sc_event_and_list &) const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return sc_event_and_expr();
+}
+
+sc_event_or_expr
+sc_event::operator | (const sc_event &) const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return sc_event_or_expr();
+}
+
+sc_event_or_expr
+sc_event::operator | (const sc_event_or_list &) const
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return sc_event_or_expr();
+}
+
+const std::vector<sc_event *> &
+sc_get_top_level_events()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return *(const std::vector<sc_event *> *)nullptr;
+}
+
+sc_event *
+sc_find_event(const char *)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return (sc_event *)nullptr;
+}
+
+} // namespace sc_core
diff --git a/src/systemc/sc_event.hh b/src/systemc/sc_event.hh
new file mode 100644
index 000000000..0da36f239
--- /dev/null
+++ b/src/systemc/sc_event.hh
@@ -0,0 +1,134 @@
+/*
+ * Copyright 2018 Google, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Authors: Gabe Black
+ */
+
+#ifndef __SYSTEMC_SC_EVENT_HH__
+#define __SYSTEMC_SC_EVENT_HH__
+
+#include <vector>
+
+#include "sc_time.hh"
+
+namespace sc_core
+{
+
+class sc_event;
+class sc_event_and_expr;
+class sc_event_or_expr;
+class sc_object;
+class sc_port_base;
+
+class sc_event_and_list
+{
+  public:
+    sc_event_and_list();
+    sc_event_and_list(const sc_event_and_list &);
+    sc_event_and_list(const sc_event &);
+    sc_event_and_list &operator = (const sc_event_and_list &);
+
+    int size() const;
+    void swap(sc_event_and_list &);
+
+    sc_event_and_list &operator &= (const sc_event &);
+    sc_event_and_list &operator &= (const sc_event_and_list &);
+
+    sc_event_and_expr operator & (const sc_event &) const;
+    sc_event_and_expr operator & (const sc_event_and_list &);
+};
+
+class sc_event_or_list
+{
+  public:
+    sc_event_or_list();
+    sc_event_or_list(const sc_event_or_list &);
+    sc_event_or_list(const sc_event &);
+    sc_event_or_list& operator = (const sc_event_or_list &);
+    ~sc_event_or_list();
+
+    int size() const;
+    void swap(sc_event_or_list &);
+
+    sc_event_or_list &operator |= (const sc_event &);
+    sc_event_or_list &operator |= (const sc_event_or_list &);
+
+    sc_event_or_expr operator | (const sc_event &) const;
+    sc_event_or_expr operator | (const sc_event_or_list &) const;
+};
+
+class sc_event_and_expr
+{
+  public:
+    operator const sc_event_and_list &() const;
+};
+
+sc_event_and_expr operator & (sc_event_and_expr, sc_event const &);
+sc_event_and_expr operator & (sc_event_and_expr, sc_event_and_list const &);
+
+class sc_event_or_expr
+{
+  public:
+    operator const sc_event_or_list &() const;
+};
+
+sc_event_or_expr operator | (sc_event_or_expr, sc_event const &);
+sc_event_or_expr operator | (sc_event_or_expr, sc_event_or_list const &);
+
+class sc_event
+{
+  public:
+    sc_event();
+    explicit sc_event(const char *);
+    ~sc_event();
+
+    const char *name() const;
+    const char *basename() const;
+    bool in_hierarchy() const;
+    sc_object *get_parent_object() const;
+
+    void notify();
+    void notify(const sc_time &);
+    void notify(double, sc_time_unit);
+    void cancel();
+
+    sc_event_and_expr operator & (const sc_event &) const;
+    sc_event_and_expr operator & (const sc_event_and_list &) const;
+    sc_event_or_expr operator | (const sc_event &) const;
+    sc_event_or_expr operator | (const sc_event_or_list &) const;
+
+  private:
+    // Disabled
+    sc_event(const sc_event &) {}
+    sc_event &operator = (const sc_event &) { return *this; }
+};
+
+const std::vector<sc_event *> &sc_get_top_level_events();
+sc_event *sc_find_event(const char *);
+
+} // namespace sc_core
+
+#endif  //__SYSTEMC_SC_INTERFACE_HH__