SharedMemory 0.5.0.dev0

SharedMemory encapsulation

SharedMemory

Encapsulation of the python shared_memory library.

Features

• Shared type:
  • Basic type (int, float, bool, str)
  • list and dict
• Mutex
• Timeout for Mutex
• Management of the availability of shared memory space
• Overloaded methods for list and dict

Future improvement

• Adding more tests

Example

Example of execution in two instances of ipython.

Client side

In [1]: from SharedMemory import Client

In [2]: # Creating client instance with a shared space named 'shared_space' with a size of 10
   ...: C = Client(name="shared_space", value="Hello", size=10, timeout=1)

In [3]: C.getStatus()
Out[3]: 'Started'

In [4]: C.getAvailability() # First boolean: Client Availability, Second boolean: Server Availability
Out[4]: (True, True)

In [5]: C.getValue()
Out[5]: 'Hello'

In [6]: # Waiting for Server to update shared data

In [7]: C.getValue()
Out[7]: 'World'

In [8]: C.updateValue('HW')

In [9]: C.getValue()
Out[9]: 'HW'

In [10]: # Closing the client side
    ...: C.stop()

Server side

In [1]: from SharedMemory import Server

In [2]: # Creating server instance access to the shared named 'shared_space'
   ...: S = Server(name="shared_space", timeout=1)

In [3]: S.getStatus()
Out[3]: 'Connected'

In [4]: S.getAvailability() # First boolean: Server Availability, Second boolean: Client Availability
Out[4]: (True, True)

In [5]: S.getValue()
Out[5]: 'Hello'

In [6]: S.updateValue("World")

In [7]: S.getValue()
Out[7]: 'Hello'

In [8]: # Waiting for Client to update shared data

In [9]: S.getValue()
Out[9]: 'HW'

In [10]: # Closing the server side
    ...: S.stop()

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