Memfault Firmware SDK 0.43.2 (Build 2071)

Author: Memfault Inc

CHANGES.md

@@ -1,3 +1,11 @@
+### Changes between Memfault SDK 0.43.2 and 0.43.1 - May 3, 2023
+
+#### :chart_with_upwards_trend: Improvements
+
+- Fix a bug 🐛 where metrics accumulated with `memfault_metrics_heartbeat_add()`
+  would no longer be included in the serialized heartbeat data. This regression
+  occurred in `0.42.0`.
+
 ### Changes between Memfault SDK 0.43.1 and 0.43.0 - April 26, 2023
 
 #### :chart_with_upwards_trend: Improvements

VERSION

@@ -1,2 +1,2 @@
-BUILD ID: 2030
-GIT COMMIT: 6bca4dee8
+BUILD ID: 2071
+GIT COMMIT: b1c0f7c97

components/include/memfault/version.h

@@ -19,7 +19,7 @@ typedef struct {
   uint8_t patch;
 } sMfltSdkVersion;
 
-#define MEMFAULT_SDK_VERSION   { .major = 0, .minor = 43, .patch = 1 }
+#define MEMFAULT_SDK_VERSION   { .major = 0, .minor = 43, .patch = 2 }
 
 #ifdef __cplusplus
 }

components/metrics/src/memfault_metrics.c

@@ -649,6 +649,9 @@ int memfault_metrics_heartbeat_add(MemfaultMetricId key, int32_t amount) {
   memfault_lock();
   {
     rv = prv_find_key_and_add(key, amount);
+    if(rv == 0) {
+        prv_read_write_is_value_set(key, true);
+    }
   }
   memfault_unlock();
   return rv;

tests/src/test_memfault_heartbeat_metrics_debug.cpp

@@ -150,4 +150,23 @@ TEST(MemfaultHeartbeatMetricsDebug, Test_DebugPrints) {
                                MEMFAULT_ARRAY_SIZE(heartbeat_debug_print_reset));
   memfault_metrics_heartbeat_debug_print();
   mock().checkExpectations();
+
+  // Finally test that memfault_metrics_heartbeat_add by itself sets the metric
+  // to is_set
+  const char *heartbeat_add_non_null[] = {
+    "Heartbeat keys/values:",
+    "  MemfaultSdkMetric_IntervalMs: 0",
+    "  MemfaultSdkMetric_UnexpectedRebootCount: null",
+    "  MemfaultSdkMetric_UnexpectedRebootDidOccur: 0",
+    "  test_key_unsigned: 123",
+    "  test_key_signed: null",
+    "  test_key_timer: 0",
+    "  test_key_string: \"\"",
+  };
+  prv_debug_print_expectations(kMemfaultPlatformLogLevel_Debug, heartbeat_add_non_null,
+                               MEMFAULT_ARRAY_SIZE(heartbeat_add_non_null));
+  // call add on this metric alone and confirm it is set
+  memfault_metrics_heartbeat_add(MEMFAULT_METRICS_KEY(test_key_unsigned), 123);
+  memfault_metrics_heartbeat_debug_print();
+  mock().checkExpectations();
 }