changed to return a single opaque string containing contact info for all available oob channels

This commit was SVN r2024.

src/mca/oob/base/base.h

@@ -75,16 +75,15 @@ extern "C" {
 #endif
         
 /**
-*  Obtains the contact info (oob implementation specific) URI strings through
-*  which this process can be contacted on an OOB channel.
+*  Returns a null terminated character string returning contact info
+*  for all supported OOB channels.
 *
-*  @return  A null terminated array of strings.
+*  @return  A null terminated string.
 *
-*  The caller is responsible for freeing both the array and the strings that
-*  it points to.
+*  The caller is responsible for freeing the returned string.
 */
 
-char** mca_oob_get_contact_info(void);
+char* mca_oob_get_contact_info(void);
 
 /**
 *  Similiar to unix writev(2).

src/mca/oob/base/oob_base_init.c

@@ -107,16 +107,12 @@ int mca_oob_base_init(bool *user_threads, bool *hidden_threads)
 *  Obtains the contact info (oob implementation specific) URI strings through
 *  which this process can be contacted on an OOB channel.
 *
-*  @return  A null terminated array of strings.
+*  @return  A null terminated string.
 *
-*  The caller is responsible for freeing both the array and the strings that
-*  it points to.
+*  The caller is responsible for freeing the returned string.
 */
                                                                                                              
-char** mca_oob_get_contact_info()
+char* mca_oob_get_contact_info()
 {
-    char** contact_info = malloc(sizeof(char*) * (ompi_list_get_size(&mca_oob_base_modules)+1));
-    contact_info[0] = strdup("tcp:localhost:5000");
-    contact_info[1] = NULL;
-    return contact_info;
+    return strdup("tcp:localhost:5000");
 }