Commit Graph

18 Commits

Author SHA1 Message Date
David Lechner 259d9b69fe py/mpstate: Schedule KeyboardInterrupt on main thread.
This introduces a new macro to get the main thread and uses it to ensure
that asynchronous exceptions such as KeyboardInterrupt (CTRL+C) are only
scheduled on the main thread. This is more deterministic than being
scheduled on a random thread and is more in line with CPython that only
allow signal handlers to run on the main thread.

Fixes issue #7026.

Signed-off-by: David Lechner <david@pybricks.com>
2021-06-19 09:49:00 +10:00
David Lechner ca920f7218 py/mpstate: Make exceptions thread-local.
This moves mp_pending_exception from mp_state_vm_t to mp_state_thread_t.
This allows exceptions to be scheduled on a specific thread.

Signed-off-by: David Lechner <david@pybricks.com>
2021-06-19 09:43:44 +10:00
Damien George e9e9c76ddf all: Rename mp_keyboard_interrupt to mp_sched_keyboard_interrupt.
To match mp_sched_exception() and mp_sched_schedule().

Signed-off-by: Damien George <damien@micropython.org>
2021-04-30 15:13:43 +10:00
Jim Mussared 4559bcb467 unix: Make mp_hal_delay_ms run MICROPY_EVENT_POLL_HOOK.
Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
2020-11-13 17:19:05 +11:00
Damien George 905a18aafe unix,windows: Implement mp_hal_time_ns using gettimeofday.
This provides microsecond accuracy.

Signed-off-by: Damien George <damien@micropython.org>
2020-10-01 14:20:42 +10:00
Damien George ee50a6effe py/mphal.h: Introduce mp_hal_time_ns and implement on various ports.
This should return a 64-bit value being the number of nanoseconds since
1970/1/1.

Signed-off-by: Damien George <damien@micropython.org>
2020-08-22 16:13:44 +10:00
David Lechner 9418611c8a unix: Implement PEP 475 to retry syscalls failing with EINTR.
https://www.python.org/dev/peps/pep-0475/

This implements something similar to PEP 475 on the unix port, and for the
VfsPosix class.

There are a few differences from the CPython implementation:
- Since we call mp_handle_pending() between any ENITR's, additional
  functions could be called if MICROPY_ENABLE_SCHEDULER is enabled, not
  just signal handlers.
- CPython only handles signal on the main thread, so other threads will
  raise InterruptedError instead of retrying.  On MicroPython,
  mp_handle_pending() will currently raise exceptions on any thread.

A new macro MP_HAL_RETRY_SYSCALL is introduced to reduce duplicated code
and ensure that all instances behave the same.  This will also allow other
ports that use POSIX-like system calls (and use, eg, VfsPosix) to provide
their own implementation if needed.
2020-03-27 14:40:46 +11:00
David Lechner 3b07736b6d unix,windows: Use STDIN_FILENO, STDOUT_FILENO macros where appropriate.
This replaces 0 and 1 with STDIN_FILENO and STDOUT_FILENO to make the
intention of the code clearer.
2020-03-25 00:59:05 +11:00
Damien George 69661f3343 all: Reformat C and Python source code with tools/codeformat.py.
This is run with uncrustify 0.70.1, and black 19.10b0.
2020-02-28 10:33:03 +11:00
Damien George 73670ef281 unix/unix_mphal: Adjust #if in mp_hal_stdin_rx_chr to improve format. 2020-02-28 10:30:28 +11:00
Damien George 046ae80bdf unix, windows: Use mp_keyboard_interrupt instead of custom code.
The mp_keyboard_interrupt() function does exactly what is needed here, and
using it gets ctrl-C working when MICROPY_ENABLE_SCHEDULER is enabled on
these ports (and MICROPY_ASYNC_KBD_INTR is disabled).
2020-02-07 16:08:33 +11:00
David Lechner d89ed3e62b unix/unix_mphal: Add compile check for incompatible GIL+ASYNC_KBD_INTR.
It is not safe to enable MICROPY_ASYNC_KBD_INTR and MICROPY_PY_THREAD_GIL
at the same time.  This will trigger a compiler error to ensure that it
is not possible to make this mistake.
2020-01-26 23:31:27 +11:00
David Lechner fee7e5617f unix: Release GIL during all system calls.
Addition of GIL EXIT/ENTER pairs are:

- modos: release the GIL during system calls.  CPython does this as well.

- moduselect: release the GIL during the poll() syscall.  This call can be
  blocking, so it is important to allow other threads to run at this time.

- modusocket: release the GIL during system calls.  Many of these calls can
  be blocking, so it is important to allow other threads to run.

- unix_mphal: release the GIL during the read and write syscalls in
  mp_hal_stdin_rx_chr and mp_hal_stdout_tx_strn.  If we don't do this
  threads are blocked when the REPL or the builtin input function are used.

- file, main, mpconfigport.h: release GIL during syscalls in built-in
  functions that could block.
2020-01-26 23:21:29 +11:00
Paul m. p. P 42d30c5baf unix/unix_mphal: Include time.h for CLOCK_MONOTONIC. 2019-07-09 13:05:59 +10:00
Mikhail Zakharov ced340d739 unix/unix_mphal: Use CLOCK_MONOTONIC for ticks_ms/us when available. 2019-06-26 11:07:45 +10:00
Damien George 37282f8fc1 extmod/uos_dupterm: Update uos.dupterm() and helper funcs to have index.
The uos.dupterm() signature and behaviour is updated to reflect the latest
enhancements in the docs.  It has minor backwards incompatibility in that
it no longer accepts zero arguments.

The dupterm_rx helper function is moved from esp8266 to extmod and
generalised to support multiple dupterm slots.

A port can specify multiple slots by defining the MICROPY_PY_OS_DUPTERM
config macro to an integer, being the number of slots it wants to have;
0 means to disable the dupterm feature altogether.

The unix and esp8266 ports are updated to work with the new interface and
are otherwise unchanged with respect to functionality.
2017-10-13 20:01:57 +11:00
Damien George a3dc1b1957 all: Remove inclusion of internal py header files.
Header files that are considered internal to the py core and should not
normally be included directly are:
    py/nlr.h - internal nlr configuration and declarations
    py/bc0.h - contains bytecode macro definitions
    py/runtime0.h - contains basic runtime enums

Instead, the top-level header files to include are one of:
    py/obj.h - includes runtime0.h and defines everything to use the
        mp_obj_t type
    py/runtime.h - includes mpstate.h and hence nlr.h, obj.h, runtime0.h,
        and defines everything to use the general runtime support functions

Additional, specific headers (eg py/objlist.h) can be included if needed.
2017-10-04 12:37:50 +11:00
Damien George 01dd7804b8 ports: Make new ports/ sub-directory and move all ports there.
This is to keep the top-level directory clean, to make it clear what is
core and what is a port, and to allow the repository to grow with new ports
in a sustainable way.
2017-09-06 13:40:51 +10:00