Add support for dicts of dicts to telemetry library.

Signed-off-by: Declan Doherty <declan.dohe...@intel.com>
Signed-off-by: Radu Nicolau <radu.nico...@intel.com>
---
 lib/telemetry/telemetry.c      | 43 +++++++++++++++++++++++++++++++---
 lib/telemetry/telemetry_data.c |  2 +-
 2 files changed, 41 insertions(+), 4 deletions(-)

diff --git a/lib/telemetry/telemetry.c b/lib/telemetry/telemetry.c
index 8665db8d03..3f83476112 100644
--- a/lib/telemetry/telemetry.c
+++ b/lib/telemetry/telemetry.c
@@ -24,7 +24,7 @@
 #include "telemetry_internal.h"
 
 #define MAX_CMD_LEN 56
-#define MAX_HELP_LEN 64
+#define MAX_HELP_LEN 128
 #define MAX_OUTPUT_LEN (1024 * 16)
 #define MAX_CONNECTIONS 10
 
@@ -157,8 +157,8 @@ container_to_json(const struct rte_tel_data *d, char 
*out_buf, size_t buf_len)
        size_t used = 0;
        unsigned int i;
 
-       if (d->type != RTE_TEL_ARRAY_U64 && d->type != RTE_TEL_ARRAY_INT
-                       && d->type != RTE_TEL_ARRAY_STRING)
+       if (d->type != RTE_TEL_DICT && d->type != RTE_TEL_ARRAY_U64 &&
+               d->type != RTE_TEL_ARRAY_INT && d->type != RTE_TEL_ARRAY_STRING)
                return snprintf(out_buf, buf_len, "null");
 
        used = rte_tel_json_empty_array(out_buf, buf_len, 0);
@@ -177,6 +177,43 @@ container_to_json(const struct rte_tel_data *d, char 
*out_buf, size_t buf_len)
                        used = rte_tel_json_add_array_string(out_buf,
                                buf_len, used,
                                d->data.array[i].sval);
+       if (d->type == RTE_TEL_DICT)
+               for (i = 0; i < d->data_len; i++) {
+                       const struct tel_dict_entry *v = &d->data.dict[i];
+                       switch (v->type) {
+                       case RTE_TEL_STRING_VAL:
+                               used = rte_tel_json_add_obj_str(out_buf,
+                                               buf_len, used,
+                                               v->name, v->value.sval);
+                               break;
+                       case RTE_TEL_INT_VAL:
+                               used = rte_tel_json_add_obj_int(out_buf,
+                                               buf_len, used,
+                                               v->name, v->value.ival);
+                               break;
+                       case RTE_TEL_U64_VAL:
+                               used = rte_tel_json_add_obj_u64(out_buf,
+                                               buf_len, used,
+                                               v->name, v->value.u64val);
+                               break;
+                       case RTE_TEL_CONTAINER:
+                       {
+                               char temp[buf_len];
+                               const struct container *cont =
+                                               &v->value.container;
+                               if (container_to_json(cont->data,
+                                               temp, buf_len) != 0)
+                                       used = rte_tel_json_add_obj_json(
+                                                       out_buf,
+                                                       buf_len, used,
+                                                       v->name, temp);
+                               if (!cont->keep)
+                                       rte_tel_data_free(cont->data);
+                               break;
+                       }
+                       }
+               }
+
        return used;
 }
 
diff --git a/lib/telemetry/telemetry_data.c b/lib/telemetry/telemetry_data.c
index 77b0fe09a5..54a7c79fff 100644
--- a/lib/telemetry/telemetry_data.c
+++ b/lib/telemetry/telemetry_data.c
@@ -153,7 +153,7 @@ rte_tel_data_add_dict_container(struct rte_tel_data *d, 
const char *name,
 {
        struct tel_dict_entry *e = &d->data.dict[d->data_len];
 
-       if (d->type != RTE_TEL_DICT || (val->type != RTE_TEL_ARRAY_U64
+       if ((d->type != RTE_TEL_DICT && val->type != RTE_TEL_ARRAY_U64
                        && val->type != RTE_TEL_ARRAY_INT
                        && val->type != RTE_TEL_ARRAY_STRING))
                return -EINVAL;
-- 
2.25.1

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