SharedMemoryManager
- SharedMemoryManager([address[, authkey]])
Like SyncManager but uses SharedMemoryServer instead of Server. It provides methods for creating and returning SharedMemory instances and for creating a list-like object (ShareableList) backed by shared memory. It also provides methods that create and return Proxy Objects that support synchronization across processes (i.e. multi-process-safe locks and semaphores).
© Python Software Foundation. PSF License Version 2 · Official docs ↗
Members of SharedMemoryManager
s
- ShareableList
- Returns a new ShareableList instance populated with the values from the input sequence, to be tracked by the manager.
- SharedMemory
- Returns a new SharedMemory instance with the specified size in bytes, to be tracked by the manager.
1 Example
>>> from multiprocessing.managers import SharedMemoryManager >>> smm = SharedMemoryManager() >>> smm.start() # Start the process that manages the shared memory blocks >>> sl = smm.ShareableList(range(4)) >>> sl ShareableList([0, 1, 2, 3], name='psm_6572_7512') >>> raw_shm = smm.SharedMemory(size=128) >>> another_sl = smm.ShareableList('alpha') >>> another_sl ShareableList(['a', 'l', 'p', 'h', 'a'], name='psm_6572_12221') >>> smm.shutdown() # Calls unlink() on sl, raw_shm, and another_sl
from the Python docs