1 files changed, 24 insertions, 0 deletions
diff --git a/lib/git/async/util.py b/lib/git/async/util.py
new file mode 100644
index 00000000..dabd8a42
--- /dev/null
+++ b/lib/git/async/util.py
@@ -0,0 +1,24 @@
+"""Module with utilities related to async operations"""
+
+import sys
+import os
+
+def cpu_count():
+	""":return:number of CPUs in the system
+	:note: inspired by multiprocessing"""
+	num = 0
+	try:
+		if sys.platform == 'win32':
+			num = int(os.environ['NUMBER_OF_PROCESSORS'])
+		elif 'bsd' in sys.platform or sys.platform == 'darwin':
+			num = int(os.popen('sysctl -n hw.ncpu').read())
+		else:
+			num = os.sysconf('SC_NPROCESSORS_ONLN')
+	except (ValueError, KeyError, OSError, AttributeError):
+		pass
+	# END exception handling
+	
+	if num == 0:
+		raise NotImplementedError('cannot determine number of cpus')
+	
+	return num