Temp (FreeBSD): improve CPU temp detection

Author: CarterLi

src/detection/cpu/cpu_bsd.c

@@ -16,7 +16,10 @@ const char* ffDetectCPUImpl(const FFCPUOptions* options, FFCPUResult* cpu)
     cpu->temperature = FF_CPU_TEMP_UNSET;
 
     if (options->temp)
-        ffDetectThermalTemp(&cpu->temperature);
+    {
+        if (!ffDetectCpuTemp(&cpu->temperature))
+            ffDetectThermalTemp(&cpu->temperature);
+    }
 
     return NULL;
 }

src/detection/temps/temps_bsd.c

@@ -1,6 +1,17 @@
 #include "temps_bsd.h"
 #include "common/sysctl.h"
 
+const char* ffDetectCpuTemp(double* current)
+{
+    int temp = ffSysctlGetInt("dev.cpu.0.temperature", -999999);
+    if (temp == -999999)
+        return "ffSysctlGetInt(\"dev.cpu.0.temperature\") failed";
+
+    // In tenth of degrees Celsius
+    *current = (double) temp / 10;
+    return NULL;
+}
+
 const char* ffDetectThermalTemp(double* current)
 {
     int temp = ffSysctlGetInt("hw.acpi.thermal.tz0.temperature", -999999);

src/detection/temps/temps_bsd.h

@@ -3,6 +3,7 @@
 #ifndef FF_INCLUDED_detection_temps_windows
 #define FF_INCLUDED_detection_temps_windows
 
+const char* ffDetectCpuTemp(double* current);
 const char* ffDetectThermalTemp(double* current);
 
 #endif