1 files changed, 103 insertions, 0 deletions
diff --git a/src/collectors/windows.plugin/perflib-thermalzone.c b/src/collectors/windows.plugin/perflib-thermalzone.c
new file mode 100644
index 000000000..f85ba019f
--- /dev/null
+++ b/src/collectors/windows.plugin/perflib-thermalzone.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#include "windows_plugin.h"
+#include "windows-internals.h"
+
+struct thermal_zone {
+    RRDSET *st;
+    RRDDIM *rd;
+
+    COUNTER_DATA thermalZoneTemperature;
+};
+
+static inline void initialize_thermal_zone_keys(struct thermal_zone *p) {
+    p->thermalZoneTemperature.key = "Temperature";
+}
+
+void dict_thermal_zone_insert_cb(const DICTIONARY_ITEM *item __maybe_unused, void *value, void *data __maybe_unused) {
+    struct thermal_zone *p = value;
+    initialize_thermal_zone_keys(p);
+}
+
+static DICTIONARY *thermal_zones = NULL;
+
+static void initialize(void) {
+    thermal_zones = dictionary_create_advanced(
+        DICT_OPTION_DONT_OVERWRITE_VALUE | DICT_OPTION_FIXED_SIZE, NULL, sizeof(struct thermal_zone));
+
+    dictionary_register_insert_callback(thermal_zones, dict_thermal_zone_insert_cb, NULL);
+}
+
+static bool do_thermal_zones(PERF_DATA_BLOCK *pDataBlock, int update_every) {
+    PERF_OBJECT_TYPE *pObjectType = perflibFindObjectTypeByName(pDataBlock, "Thermal Zone Information");
+    if (!pObjectType)
+        return false;
+
+    PERF_INSTANCE_DEFINITION *pi = NULL;
+    for (LONG i = 0; i < pObjectType->NumInstances; i++) {
+        pi = perflibForEachInstance(pDataBlock, pObjectType, pi);
+        if (!pi)
+            break;
+
+        if (!getInstanceName(pDataBlock, pObjectType, pi, windows_shared_buffer, sizeof(windows_shared_buffer)))
+            strncpyz(windows_shared_buffer, "[unknown]", sizeof(windows_shared_buffer) - 1);
+
+        struct thermal_zone *p = dictionary_set(thermal_zones, windows_shared_buffer, NULL, sizeof(*p));
+
+        perflibGetInstanceCounter(pDataBlock, pObjectType, pi, &p->thermalZoneTemperature);
+
+        // https://learn.microsoft.com/en-us/windows-hardware/design/device-experiences/design-guide
+        if (!p->st) {
+            char id[RRD_ID_LENGTH_MAX + 1];
+            snprintfz(id, RRD_ID_LENGTH_MAX, "thermalzone_%s_temperature", windows_shared_buffer);
+            netdata_fix_chart_name(id);
+            p->st = rrdset_create_localhost(
+                "system",
+                id,
+                NULL,
+                "thermalzone",
+                "system.thermalzone_temperature",
+                "Thermal zone temperature",
+                "Celsius",
+                PLUGIN_WINDOWS_NAME,
+                "ThermalZone",
+                NETDATA_CHART_PRIO_WINDOWS_THERMAL_ZONES,
+                update_every,
+                RRDSET_TYPE_LINE);
+
+            p->rd = rrddim_add(p->st, id, "temperature", 1, 1, RRD_ALGORITHM_ABSOLUTE);
+
+            rrdlabels_add(p->st->rrdlabels, "thermalzone", windows_shared_buffer, RRDLABEL_SRC_AUTO);
+        }
+
+        // Convert to Celsius before to plot
+        NETDATA_DOUBLE kTemperature = (NETDATA_DOUBLE)p->thermalZoneTemperature.current.Data;
+        kTemperature -= 273.15;
+
+        rrddim_set_by_pointer(p->st, p->rd, (collected_number)kTemperature);
+        rrdset_done(p->st);
+    }
+
+    return true;
+}
+
+int do_PerflibThermalZone(int update_every, usec_t dt __maybe_unused) {
+    static bool initialized = false;
+
+    if (unlikely(!initialized)) {
+        initialize();
+        initialized = true;
+    }
+
+    DWORD id = RegistryFindIDByName("Thermal Zone Information");
+    if (id == PERFLIB_REGISTRY_NAME_NOT_FOUND)
+        return -1;
+
+    PERF_DATA_BLOCK *pDataBlock = perflibGetPerformanceData(id);
+    if (!pDataBlock)
+        return -1;
+
+    do_thermal_zones(pDataBlock, update_every);
+
+    return 0;
+}