micropython

embedded microcontroller python micropython

Damien George e08ca78f40 py/stream: Remove mp_stream_errno and use system errno instead. This change is made for two reasons: 1. A 3rd-party library (eg berkeley-db-1.xx, axtls) may use the system provided errno for certain errors, and yet MicroPython stream objects that it calls will be using the internal mp_stream_errno. So if the library returns an error it is not known whether the corresponding errno code is stored in the system errno or mp_stream_errno. Using the system errno in all cases (eg in the mp_stream_posix_XXX wrappers) fixes this ambiguity. 2. For systems that have threading the system-provided errno should always be used because the errno value is thread-local. For systems that do not have an errno, the new lib/embed/__errno.c file is provided.	5 years ago
..
__errno.c	py/stream: Remove mp_stream_errno and use system errno instead.	5 years ago
abort_.c	all: Use MP_ERROR_TEXT for all error messages.	5 years ago

Damien George e08ca78f40 py/stream: Remove mp_stream_errno and use system errno instead.

This change is made for two reasons:

1. A 3rd-party library (eg berkeley-db-1.xx, axtls) may use the system
   provided errno for certain errors, and yet MicroPython stream objects
   that it calls will be using the internal mp_stream_errno.  So if the
   library returns an error it is not known whether the corresponding errno
   code is stored in the system errno or mp_stream_errno.  Using the system
   errno in all cases (eg in the mp_stream_posix_XXX wrappers) fixes this
   ambiguity.

2. For systems that have threading the system-provided errno should always
   be used because the errno value is thread-local.

For systems that do not have an errno, the new lib/embed/__errno.c file is
provided.

5 years ago

__errno.c

py/stream: Remove mp_stream_errno and use system errno instead.

5 years ago

abort_.c

all: Use MP_ERROR_TEXT for all error messages.

5 years ago