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rdlm-py is a python client for RDLM (Restful Distributed Lock Manager)

Project description

What is it ?

rdlm-py is a python client for the restful-distributed-lock-manager (RDLM).

Warning

rdlm-py is at an early stage of development (API can change).

Status (master branch)

|Build Status|

Two ways to use it

Classic API

# Import the Classic client class
from rdlmpy import RDLMClient
from rdlmpy import RDLMException

# Make a client object with some default parameters
client = RDLMClient(server="localhost", port=8888, default_title="classic example", default_lifetime=300, default_wait=10)

# Acquire a lock on resource : foo
lock_url = client.lock_acquire("foo")

# We have the lock on resource : foo
# [...]

# Try to acquire the same lock another time with a overrided wait timeout of 3 seconds
# => RDLMException
try:
    lock_url2 = client.lock_acquire("foo", wait=3)
except RDLMException:
    print "Can't acquire the lock"

# Release the lock
result = client.lock_release(lock_url)
if not(result):
    print "Can't release the lock"

Context Manager API

# Import the Context Manager class class
from rdlmpy import RDLMContextManager

with RDLMContextManager("foo") as c:
    # We have the lock on resource: foo
    # [...]
    # No need to release the lock, even if an exception is raised

# Here, we don't have the lock anymore
# [...]

Project details


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