UTIL: add parser doc (#934)

Author: Sergei-Lebedev

config/m4/ucx.m4

@@ -128,6 +128,10 @@ AS_IF([test "x$ucx_checked" != "xyes"],[
                   [AC_DEFINE([UCS_HAVE_PARSER_SET_VALUE_TABLE_PREFIX], [1], [flags for ucs_rcache_get])],
                   [])
 
+            AC_CHECK_MEMBER(ucs_config_parser_t.doc,
+                [AC_DEFINE([UCS_HAVE_PARSER_CONFIG_DOC], [1], [flags for ucs_rcache_get])],
+                [],
+                [#include <ucs/memory/rcache.h>])
         ],
         [
             AS_IF([test "x$with_ucx" != "xguess"],

src/utils/ucc_parser.h

@@ -268,8 +268,29 @@ int ucc_config_sprintf_uint_ranged(char *buf, size_t max, const void *src,
 ucs_status_t ucc_config_clone_uint_ranged(const void *src, void *dest,
                                           const void *arg);
 
-void         ucc_config_release_uint_ranged(void *ptr, const void *arg);
+void ucc_config_release_uint_ranged(void *ptr, const void *arg);
 
+#ifdef UCS_HAVE_PARSER_CONFIG_DOC
+#define UCC_CONFIG_TYPE_UINT_RANGED                                            \
+    {                                                                          \
+        ucc_config_sscanf_uint_ranged, ucc_config_sprintf_uint_ranged,         \
+            ucc_config_clone_uint_ranged, ucc_config_release_uint_ranged,      \
+            ucs_config_help_generic, ucs_config_doc_nop,                       \
+            "[<munit>-<munit>:[mtype]:value,"                                  \
+            "<munit>-<munit>:[mtype]:value,...,]default_value\n"               \
+            "#            value and default_value can be \"auto\""             \
+    }
+
+#define UCC_CONFIG_TYPE_PIPELINE_PARAMS                                        \
+    {                                                                          \
+        ucc_config_sscanf_pipeline_params, ucc_config_sprintf_pipeline_params, \
+            ucc_config_clone_pipeline_params,                                  \
+            ucc_config_release_pipeline_params, ucs_config_help_generic,       \
+            ucs_config_doc_nop,                                                \
+            "thresh=<memunit>:fragsize=<memunit>:nfrags="                      \
+            "<uint>:pdepth=<uint>:<ordered/parallel/sequential>"               \
+    }
+#else
 #define UCC_CONFIG_TYPE_UINT_RANGED                                            \
     {                                                                          \
         ucc_config_sscanf_uint_ranged, ucc_config_sprintf_uint_ranged,         \
@@ -289,3 +310,4 @@ void         ucc_config_release_uint_ranged(void *ptr, const void *arg);
     }
 
 #endif
+#endif