systemc: Add the nonstandard sc_join class and sc_thread_handle type.

Change-Id: I09905bad4797d9c456229afe601006ce16977394
Reviewed-on: https://gem5-review.googlesource.com/11353
Reviewed-by: Gabe Black <gabeblack@google.com>
Maintainer: Gabe Black <gabeblack@google.com>

src/systemc/core/SConscript

@@ -37,6 +37,7 @@ if env['USE_SYSTEMC']:
     Source('sc_event.cc')
     Source('sc_export.cc')
     Source('sc_interface.cc')
+    Source('sc_join.cc')
     Source('sc_main.cc')
     Source('sc_module.cc')
     Source('sc_module_name.cc')

src/systemc/core/sc_join.cc

@@ -0,0 +1,72 @@
+/*
+ * 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 "base/logging.hh"
+#include "systemc/ext/core/sc_join.hh"
+
+namespace sc_core
+{
+
+sc_join::sc_join()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_join::add_process(sc_process_handle)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+int
+sc_join::process_count()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+    return 0;
+}
+
+void
+sc_join::signal(sc_thread_handle thread_p, int type)
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_join::wait()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+void
+sc_join::wait_clocked()
+{
+    warn("%s not implemented.\n", __PRETTY_FUNCTION__);
+}
+
+} // namespace sc_core

src/systemc/ext/core/_core.hh

@@ -34,6 +34,7 @@
 #include "sc_event.hh"
 #include "sc_export.hh"
 #include "sc_interface.hh"
+#include "sc_join.hh"
 #include "sc_main.hh"
 #include "sc_module.hh"
 #include "sc_module_name.hh"

src/systemc/ext/core/_using.hh

@@ -51,6 +51,9 @@ using sc_core::sc_export;
 
 using sc_core::sc_interface;
 
+using sc_core::sc_thread_handle;
+using sc_core::sc_join;
+
 using sc_core::sc_argc;
 using sc_core::sc_argv;
 using sc_core::sc_starvation_policy;

src/systemc/ext/core/sc_join.hh

@@ -0,0 +1,55 @@
+/*
+ * 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_EXT_CORE_SC_JOIN_HH__
+#define __SYSTEMC_EXT_CORE_SC_JOIN_HH__
+
+#include "sc_process_handle.hh"
+
+namespace sc_core
+{
+
+// Nonstandard
+typedef sc_process_b *sc_thread_handle;
+
+// Nonstandard
+class sc_join
+{
+  public:
+    sc_join();
+    void add_process(sc_process_handle);
+    int process_count();
+    virtual void signal(sc_thread_handle thread_p, int type);
+    void wait();
+    void wait_clocked();
+};
+
+} // namespace sc_core
+
+#endif  //__SYSTEMC_EXT_CORE_SC_JOIN_HH__