Initialization

Import and initialize the manager:

from double_buffered_shared_memory import DoubleBufferedSharedMemoryManager
import numpy as np

# Initialize with default parameters
manager = DoubleBufferedSharedMemoryManager('image_buffer')

# Initialize with custom shape and dtype
manager = DoubleBufferedSharedMemoryManager('image_buffer', shape=(576, 720, 3), dtype=np.uint16)

Writing to Shared Memory

# Create a random HD image
img = np.random.randint(255, size=(1080, 1920, 3), dtype=np.uint8)

# Write to the active buffer
manager[0] = img

0 is a convention, you can use any number, but for clarity use 0

Reading from Shared Memory

# Switch the active buffer
manager.__switch()

# Read from the non-active buffer
img_copy = manager[0]

0 is a convention, you can use any number, but for clarity use 0

Cleanup

It’s important to clean up shared memory resources when they’re no longer needed:

manager.cleanup()

Using with Context Manager

The class supports context management protocol for automatic resource management:

with DoubleBufferedSharedMemoryManager('image_buffer') as manager:
    # Your code to use the manager
    pass