From b3cde0ee162b8f0cb67da981311c8f9c16050a62 Mon Sep 17 00:00:00 2001
From: Sebastian Thiel <byronimo@gmail.com>
Date: Sun, 6 Jun 2010 18:13:21 +0200
Subject: First step of testing the pool - tasks have been separated into a new
 module including own tests, their design improved to prepare them for some
 specifics that would be needed for multiprocessing support

---
 lib/git/async/util.py | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 lib/git/async/util.py

(limited to 'lib/git/async/util.py')

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
-- 
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