cis-kuldeep/PyBitmessage-2021-04-27
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PID file truncate fix

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- on unix it truncated the file if a second instance was being
launched
This commit is contained in:
Peter Šurda 2017-08-15 12:25:38 +02:00
parent a48dff3bee
commit 623553393b
Signed by untrusted user: PeterSurda
GPG Key ID: 0C5F50C0B5F37D87
1 changed files with 2 additions and 1 deletions
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src/singleinstance.py
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@ -56,7 +56,7 @@ class singleinstance:
pidLine = "%i\n" % self.lockPid pidLine = "%i\n" % self.lockPid
os.write(self.fd, pidLine) os.write(self.fd, pidLine)
else: # non Windows else: # non Windows
self.fp = open(self.lockfile, 'w') self.fp = open(self.lockfile, 'a+')
try: try:
if self.daemon and self.lockPid != os.getpid(): if self.daemon and self.lockPid != os.getpid():
fcntl.lockf(self.fp, fcntl.LOCK_EX) # wait for parent to finish fcntl.lockf(self.fp, fcntl.LOCK_EX) # wait for parent to finish
@ -68,6 +68,7 @@ class singleinstance:
sys.exit(-1) sys.exit(-1)
else: else:
pidLine = "%i\n" % self.lockPid pidLine = "%i\n" % self.lockPid
self.fp.truncate(0)
self.fp.write(pidLine) self.fp.write(pidLine)
self.fp.flush() self.fp.flush()