traveler.core.omx.SharedMemory

class traveler.core.omx.SharedMemory(name=None, create=False, size=0, *, track=True)

Bases: object

Creates a new shared memory block or attaches to an existing shared memory block.

Every shared memory block is assigned a unique name. This enables one process to create a shared memory block with a particular name so that a different process can attach to that same shared memory block using that same name.

As a resource for sharing data across processes, shared memory blocks may outlive the original process that created them. When one process no longer needs access to a shared memory block that might still be needed by other processes, the close() method should be called. When a shared memory block is no longer needed by any process, the unlink() method should be called to ensure proper cleanup.

Methods

close()	Closes access to the shared memory from this instance but does not destroy the shared memory block.
unlink()	Requests that the underlying shared memory block be destroyed.

Attributes

buf	A memoryview of contents of the shared memory block.
name	Unique name that identifies the shared memory block.
size	Size in bytes.