stub for example generator method

src/Makefile.subdir

@@ -101,4 +101,5 @@ src_libcodes_base_a_SOURCES =  \
     codes/timeline.h \
     src/logging/timeline.c \
     src/workload/codes-workload.c \
-    src/workload/codes-workload-method.h
+    src/workload/codes-workload-method.h \
+    src/workload/test-workload-method.c

src/workload/codes-workload-method.h

@@ -15,9 +15,12 @@
 #include "ross.h"
 #include "codes/codes-workload.h"
 
-int codes_workload_load(const char* type, const char* params, int rank);
-
-void codes_workload_get_next(int wkld_id, struct codes_workload_op *op);
+struct codes_workload_method
+{
+    char *method_name; /* name of the generator */
+    int (*codes_workload_load)(const char* params, int rank);
+    void (*codes_workload_get_next)(int wkld_id, struct codes_workload_op *op);
+};
 
 #endif /* CODES_WORKLOAD_METHOD_H */
 

src/workload/test-workload-method.c

+/*
+ * Copyright (C) 2013 University of Chicago.
+ * See COPYRIGHT notice in top-level directory.
+ *
+ */
+
+/* Example of a workload generator that plugs into the codes workload
+ * generator API.  This example just produces a hard-coded pattern for
+ * testing/validation purposes.
+ */
+
+#include "ross.h"
+#include "codes/codes-workload.h"
+#include "codes-workload-method.h"
+
+int test_workload_load(const char* params, int rank);
+void test_workload_get_next(int wkld_id, struct codes_workload_op *op);
+
+struct codes_workload_method test_workload_method = 
+{
+    .method_name = "test",
+    .codes_workload_load = test_workload_load,
+    .codes_workload_get_next = test_workload_get_next,
+};
+
+int test_workload_load(const char* params, int rank)
+{
+    /* just use the rank of the caller as the identifier */
+    /* no params in this case; this example will work with any number of
+     * ranks
+     */
+    return rank;
+}
+
+void test_workload_get_next(int wkld_id, struct codes_workload_op *op)
+{
+    /* TODO: fill in a more complex example... */
+
+    op->op_type = CODES_WK_END;
+    return;
+}
+
+/*
+ * Local variables:
+ *  c-indent-level: 4
+ *  c-basic-offset: 4
+ * End:
+ *
+ * vim: ft=c ts=8 sts=4 sw=4 expandtab
+ */