unix-sockets.md
In processx: Execute and Control System Processes

reading unaccepted server socket is error

Code
  conn_read_chars(sock1)
Condition
  Error:
  ! ! Native call to `processx_connection_read_chars` failed
  Caused by error in `chain_call(c_processx_connection_read_chars, con, n)` at connections.R:302:3:
  ! Cannot read from processx connection (system error 57, Socket is not connected) @processx-connection.c:1828 (processx__connection_read)

errors

Code
  conn_create_unix_socket(sock)
Condition
  Error:
  ! ! Native call to `processx_connection_create_socket` failed
  Caused by error in `chain_call(c_processx_connection_create_socket, filename, encoding)` at connections.R:590:3:
  ! Server socket path too long: <tempdir>/<tempfile>
Code
  conn_create_unix_socket("/dev/null")
Condition
  Error:
  ! ! Native call to `processx_connection_create_socket` failed
  Caused by error in `chain_call(c_processx_connection_create_socket, filename, encoding)` at connections.R:590:3:
  ! Cannot bind to socket (system error 48, Address already in use) @processx-connection.c:442 (processx_connection_create_socket)
Code
  conn_connect_unix_socket("/dev/null")
Condition
  Error:
  ! ! Native call to `processx_connection_connect_socket` failed
  Caused by error in `chain_call(c_processx_connection_connect_socket, filename, encoding)` at connections.R:612:3:
  ! Cannot connect to socket (system error 38, Socket operation on non-socket) @processx-connection.c:513 (processx_connection_connect_socket)