Commits on Oct 17, 2023

1. Add preliminary support for the OTP socket interface …

   This PR adds preliminary support for the OTP socket interface, which exposes APIs for low-level socket operations, as defined in OTP 22 and later. This implementation aims to be API-compatible with the OTP implementation, though many parts of the interface have yet to be implemented.
   
   Key features of this implementation include the following:
   
   * A new socket driver has been added, which uses the BSD socket interface to implement the OTP socket driver
   * This driver is supported on generic UNIX and ESP32 platforms. Where possible, a common codebase is used, to minimize the cost of maintenance.
   
   The following operations are supported:
   
   * socket:open/3
   * socket:close/1
   * socket:bind/2
   * socket:listen/1,2
   * socket:accept/1
   * socket:sockname/1
   * socket:peername/1
   * socket:recv/1
   * socket:recvfrom/1
   * socket:send/2
   * socket:sendto/3
   * socket:setopt/3
   * socket:connect/2
   * socket:shutdown/2
   
   Currently, the TCP and UDP protocols is supported. Additional work is needed to support other data types and protocols, as well as name resolution via the OTP net:addrinfo interface.
   
   Signed-off-by: Fred Dushin <fred@dushin.net>

   

   fadushin committed Oct 17, 2023
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