Author: dmeyer
Date: Sat Jan 13 20:38:41 2007
New Revision: 2387
Modified:
trunk/base/src/utils.py
Log:
create function to track if a kaa app is running
Modified: trunk/base/src/utils.py
==============================================================================
--- trunk/base/src/utils.py (original)
+++ trunk/base/src/utils.py Sat Jan 13 20:38:41 2007
@@ -154,3 +154,32 @@
os.dup2(stderr.fileno(), sys.stderr.fileno())
return lock
+
+
+def is_running(name):
+ """
+ Check if the program with the given name is running. The program
+ must have called set_running itself. Returns the pid or 0.
+ """
+ if not os.path.isfile(kaa.tempfile('run/' + name)):
+ return 0
+ run = open(kaa.tempfile('run/' + name))
+ pid = run.readline().strip()
+ cmdline = run.readline()
+ run.close()
+ if not os.path.exists('/proc/%s/cmdline' % pid):
+ return 0
+ if open('/proc/%s/cmdline' % pid).readline() == cmdline:
+ return int(pid)
+ return 0
+
+
+def set_running(name):
+ """
+ Set this program as running with the given name.
+ """
+ cmdline = open('/proc/%s/cmdline' % os.getpid()).readline()
+ run = open(kaa.tempfile('run/' + name), 'w')
+ run.write(str(os.getpid()) + '\n')
+ run.write(cmdline)
+ run.close()
-------------------------------------------------------------------------
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