Recv_into numpy array

Question

I send images to sockets from a camera that launches wince :( Images in a camera are just floating point arrays created using realloc for a given size x * y

On the other hand, I get these images in python. This code works for me

img_dtype = np.float32 img_rcv = np.empty((img_y, img_x), dtype = img_dtype) p = sck.recv_into(img_rcv, int(size_bytes), socket.MSG_WAITALL) if size_bytes != p: print "Mismatch between expected and received data amount" return img_rcv 

I'm a little confused about how numpy creates its arrays, and I wonder if this img_rcv is compatible with the way recv_into works.

My questions:

• How safe is it?
• Will the memory allocation for the numpy array for recv_into be known?
• Are numpy array creation procedures equivalent to malloc?
• Does it just work because I'm lucky?

Answer 1

Answers:

• safe

• yes, through the buffer interface

• yes, in the sense that you get a memory block that you can work with

  no

• no