From 96417e65924a8a698d395260b252cb2c1608e8f5 Mon Sep 17 00:00:00 2001
From: Yann Leboulanger <asterix@lagaule.org>
Date: Wed, 13 Dec 2006 14:41:57 +0000
Subject: [PATCH] [mdt] better pid file behaviour for windows. fixes #2165
---
src/gajim.py | 51 ++++++++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 46 insertions(+), 5 deletions(-)
diff --git a/src/gajim.py b/src/gajim.py
index db4260936d..bb9403e918 100755
--- a/src/gajim.py
+++ b/src/gajim.py
@@ -150,17 +150,58 @@ import errno
import dialogs
def pid_alive():
- if os.name == 'nt':
- return os.path.exists(pid_filename)
try:
pf = open(pid_filename)
except:
# probably file not found
return False
- try:
- pid = int(pf.read().strip())
- pf.close()
+ pid = int(pf.read().strip())
+ pf.close()
+ if os.name == 'nt':
+ try:
+ from ctypes import (windll, c_ulong, c_int, Structure, c_char, POINTER, pointer, )
+ except:
+ return True
+
+ class PROCESSENTRY32(Structure):
+ _fields_ = [
+ ('dwSize', c_ulong, ),
+ ('cntUsage', c_ulong, ),
+ ('th32ProcessID', c_ulong, ),
+ ('th32DefaultHeapID', c_ulong, ),
+ ('th32ModuleID', c_ulong, ),
+ ('cntThreads', c_ulong, ),
+ ('th32ParentProcessID', c_ulong, ),
+ ('pcPriClassBase', c_ulong, ),
+ ('dwFlags', c_ulong, ),
+ ('szExeFile', c_char*512, ),
+ ]
+ def __init__(self):
+ Structure.__init__(self, 512+9*4)
+
+ k = windll.kernel32
+ k.CreateToolhelp32Snapshot.argtypes = c_ulong, c_ulong,
+ k.CreateToolhelp32Snapshot.restype = c_int
+ k.Process32First.argtypes = c_int, POINTER(PROCESSENTRY32),
+ k.Process32First.restype = c_int
+ k.Process32Next.argtypes = c_int, POINTER(PROCESSENTRY32),
+ k.Process32Next.restype = c_int
+
+ def get_p(p):
+ h = k.CreateToolhelp32Snapshot(2, 0) # TH32CS_SNAPPROCESS
+ assert h > 0, 'CreateToolhelp32Snapshot failed'
+ b = pointer(PROCESSENTRY32())
+ f = k.Process32First(h, b)
+ while f:
+ if b.contents.th32ProcessID == p:
+ return b.contents.szExeFile
+ f = k.Process32Next(h, b)
+
+ if get_p(pid) == 'python.exe':
+ return True
+ return False
+ try:
if not os.path.exists('/proc'):
return True # no /proc, assume Gajim is running
--
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