Commenting the "aggregator" CMD

src/exchange-lib/testing_api_cmd_exec_aggregator.c

@@ -30,31 +30,30 @@
 #include "taler_testing_lib.h"
 
 
+/**
+ * State for a "aggregator" CMD.
+ */
 struct AggregatorState
 {
 
   /**
-   * Process for the aggregator.
+   * Aggregator process.
    */
   struct GNUNET_OS_Process *aggregator_proc;
 
   /**
-   * Which configuration file should we pass to the process?
+   * Configuration file used by the aggregator.
    */
   const char *config_filename;
-
 };
 
 
 /**
- * Runs the command.  Note that upon return, the interpreter
+ * Run the command.  Use the `taler-exchange-aggregator' program.
- * will not automatically run the next command, as the command
- * may continue asynchronously in other scheduler tasks.  Thus,
- * the command must ensure to eventually call
- * #TALER_TESTING_interpreter_next() or
- * #TALER_TESTING_interpreter_fail().
  *
- * @param is interpreter state
+ * @param cls closure.
+ * @param cmd command being run.
+ * @param is interpreter state.
  */
 static void
 aggregator_run (void *cls,
@@ -83,10 +82,11 @@ aggregator_run (void *cls,
 
 
 /**
- * Clean up after the command.  Run during forced termination
+ * Free the state of a "aggregator" CMD, and possibly kill its
- * (CTRL-C) or test failure or test success.
+ * process if it did not terminate correctly.
  *
- * @param cls closure
+ * @param cls closure.
+ * @param cmd the command being freed.
  */
 static void
 aggregator_cleanup (void *cls,
@@ -108,15 +108,15 @@ aggregator_cleanup (void *cls,
 
 
 /**
- * Extract information from a command that is useful for other
+ * Offer "aggregator" CMD internal data to other commands.
- * commands.
  *
- * @param cls closure
+ * @param cls closure.
- * @param ret[out] result (could be anything)
+ * @param ret[out] result (could be anything).
- * @param trait name of the trait
+ * @param trait name of the trait.
  * @param selector more detailed information about which object
  *                 to return in case there were multiple generated
- *                 by the command
+ *                 by the command.
+ *
  * @return #GNUNET_OK on success
  */
 static int
@@ -139,8 +139,13 @@ aggregator_traits (void *cls,
 
 
 /**
- * Execute taler-exchange-wirewatch process.
+ * Make a "aggregator" CMD.
  *
+ * @param label command label.
+ * @param config_filename configuration file for the
+ *                        aggregator to use.
+ *
+ * @return the command.
  */
 struct TALER_TESTING_Command
 TALER_TESTING_cmd_exec_aggregator (const char *label,