More progess on the MCA parameter registry

This commit was SVN r255.

src/mca/lam/base/mca_lam_param.h

@@ -0,0 +1,81 @@
+/*
+ * $HEADER$
+ */
+
+#ifndef LAM_MCA_BASE_PARAM_H
+#define LAM_MCA_BASE_PARAM_H
+
+#include "mpi.h"
+#include "lam/lfc/array.h"
+#include "lam/lfc/object.h"
+#include "lam/util/cmd_line.h"
+
+/*
+ * Types for MCA parameters
+ */
+
+typedef enum {
+  MCA_BASE_PARAM_TYPE_INT,
+  MCA_BASE_PARAM_TYPE_STRING,
+
+  MCA_BASE_PARAM_TYPE_MAX
+} mca_base_param_type_t;
+
+typedef union {
+  int intval;
+  char *stringval;
+} mca_base_param_storage_t;
+
+#define MCA_BASE_PARAM_INFO ((void*) -1)
+
+struct mca_base_param_t {
+  lam_array_item_t super;
+
+  mca_base_param_type_t mbp_type;
+  char *mbp_type_name;
+  char *mbp_module_name;
+  char *mbp_param_name;
+  char *mbp_full_name;
+
+  int mbp_keyval;
+  char *mbp_env_var_name;
+
+  mca_base_param_storage_t mbp_default_value;
+};
+typedef struct mca_base_param_t mca_base_param_t;
+
+
+/*
+ * Variable holding the array of registered MCA parameters
+ */
+
+extern lam_array_t mca_base_params;
+
+
+/*
+ * Global functions for MCA
+ */
+
+#if defined(c_plusplus) || defined(__cplusplus)
+extern "C" {
+#endif
+  int mca_base_param_register_int(char *type_name, char *module_name,
+                                  char *param_name, char *mca_param_name,
+                                  int default_value);
+  int mca_base_param_register_string(char *type_name, char *module_name,
+                                     char *param_name, 
+                                     char *mca_param_name,
+                                     char *default_value);
+  int mca_base_param_lookup_int(int index);
+  char *mca_base_param_lookup_string(int index);
+  int mca_base_param_find(char *type, char *module, char *param);
+  int mca_base_param_finalize(void);
+
+  int mca_base_param_kv_associate(int index, int keyval);
+  int mca_base_param_kv_lookup_int(int index, MPI_Comm comm);
+  char *mca_base_param_kv_lookup_string(int index, MPI_Comm comm);
+#if defined(c_plusplus) || defined(__cplusplus)
+}
+#endif
+
+#endif /* LAM_MCA_BASE_PARAM_H */