fixed cpu cores, updated docs

lib/index.js

@@ -171,12 +171,13 @@ exports.osinfo =function(callback) {
 // ----------------------------------------------------------------------------------
 
 // --------------------------
-// CPU - data
+// CPU - brand, speed
 
-exports.cpu = function(callback) {
+function getcpu(callback) {
 	var result = {
 		brand : 'unknown',
-		speed : 'unknown'
+		speed : 'unknown',
+		cores : tmp_cores
 	};
 	// grep "^model name" /proc/cpuinfo 2>/dev/null || sysctl -n machdep.cpu.brand_string
 	if (tmp_platform == 'Darwin') {
@@ -204,6 +205,33 @@ exports.cpu = function(callback) {
 	}
 }
 
+// --------------------------
+// CPU - Processor cores
+
+function cores(callback) {
+	exec("grep -c ^processor /proc/cpuinfo 2>/dev/null || sysctl -n hw.ncpu", function(error, stdout, stderr) {
+		var result = {cores: 1};
+		if (!error) {
+			result.cores = parseInt(stdout.toString());
+			tmp_cores = result.cores;
+    	}
+    	if (callback) callback(result);
+  });
+}
+
+// --------------------------
+// CPU - Processor Data
+
+exports.cpu = function(callback) {
+	if (tmp_cores == 0) {
+		cores(function(data) {
+			getcpu(callback)
+		})
+	} else {
+		getcpu(callback)
+	}
+}
+
 // --------------------------
 // CPU - current speed
 
@@ -232,22 +260,6 @@ exports.cpu_currentspeed = function(callback) {
 	}
 }
 
-// --------------------------
-// CPU - Processor cores
-
-function cores(callback) {
-	exec("grep -c ^processor /proc/cpuinfo 2>/dev/null || sysctl -n hw.ncpu", function(error, stdout, stderr) {
-		var result = {cores: 1};
-		if (!error) {
-			result.cores = parseInt(stdout.toString());
-			tmp_cores = result.cores;
-    	}
-    	if (callback) callback(result);
-  });
-}
-
-exports.cores = cores;
-
 // --------------------------
 // CPU - temperature 
 // if sensors are installed