From 40f70de06e85d81aafaa5a13a883cfb590076431 Mon Sep 17 00:00:00 2001
From: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Date: Wed, 5 Dec 2018 12:55:07 +0100
Subject: [PATCH] json_util: add debug logs to spdk_json_decode_object function

It is helpful to see what went wrong during decoding.

Change-Id: Ia26d3ea6e97823966840e688eaf9264dfef120a8
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/c/436194
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Maciej Szwed <maciej.szwed@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
---
 lib/json/json_util.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/json/json_util.c b/lib/json/json_util.c
index 1146e6fad..1f3d0846e 100644
--- a/lib/json/json_util.c
+++ b/lib/json/json_util.c
@@ -331,10 +331,12 @@ spdk_json_decode_object(const struct spdk_json_val *values,
 				if (seen[decidx]) {
 					/* duplicate field name */
 					invalid = true;
+					SPDK_JSON_DEBUG("Duplicate key '%s'\n", dec->name);
 				} else {
 					seen[decidx] = true;
 					if (dec->decode_func(v, field)) {
 						invalid = true;
+						SPDK_JSON_DEBUG("Decoder failed to decode key '%s'\n", dec->name);
 						/* keep going to fill out any other valid keys */
 					}
 				}
@@ -344,6 +346,7 @@ spdk_json_decode_object(const struct spdk_json_val *values,
 
 		if (!found) {
 			invalid = true;
+			SPDK_JSON_DEBUG("Decoder not found for key '%.*s'\n", name->len, (char *)name->start);
 		}
 
 		i += 1 + spdk_json_val_len(v);