Commit Graph

13 Commits

Author SHA1 Message Date
David Lechner
ffb43b2dd3 py/modthread: Return thread id from start_new_thread().
In CPython, `_thread.start_new_thread()` returns an ID that is the same ID
that is returned by `_thread.get_ident()`.  The current MicroPython
implementation of `_thread.start_new_thread()` always returns `None`.

This modifies the required functions to return a value. The native thread
id is returned since this can be used for interop with other functions, for
example, `pthread_kill()` on *nix. `_thread.get_ident()` is also modified
to return the native thread id so that the values match and avoids the need
for a separate `native_id` attribute.

Fixes issue #12153.

Signed-off-by: David Lechner <david@pybricks.com>
2023-09-03 18:49:18 +10:00
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
David Lechner
b72cb0ca1b py/mpthread.h: Use strong type for mp_thread_set_state() argument.
This modifies the signature of mp_thread_set_state() to use
mp_state_thread_t* instead of void*.  This matches the return type of
mp_thread_get_state(), which returns the same value.

`struct _mp_state_thread_t;` had to be moved before
`#include <mpthreadport.h>` since the stm32 port uses it in its
mpthreadport.h file.
2020-01-29 17:10:32 +11:00
Alexander Steffen
299bc62586 all: Unify header guard usage.
The code conventions suggest using header guards, but do not define how
those should look like and instead point to existing files. However, not
all existing files follow the same scheme, sometimes omitting header guards
altogether, sometimes using non-standard names, making it easy to
accidentally pick a "wrong" example.

This commit ensures that all header files of the MicroPython project (that
were not simply copied from somewhere else) follow the same pattern, that
was already present in the majority of files, especially in the py folder.

The rules are as follows.

Naming convention:
* start with the words MICROPY_INCLUDED
* contain the full path to the file
* replace special characters with _

In addition, there are no empty lines before #ifndef, between #ifndef and
one empty line before #endif. #endif is followed by a comment containing
the name of the guard macro.

py/grammar.h cannot use header guards by design, since it has to be
included multiple times in a single C file. Several other files also do not
need header guards as they are only used internally and guaranteed to be
included only once:
* MICROPY_MPHALPORT_H
* mpconfigboard.h
* mpconfigport.h
* mpthreadport.h
* pin_defs_*.h
* qstrdefs*.h
2017-07-18 11:57:39 +10:00
Damien George
77e37ff98b py/mpthread: Include mpstate.h when defining GIL macros. 2016-06-28 11:28:52 +01:00
Damien George
df95f52583 py/modthread: Allow to properly set the stack limit of a thread.
We rely on the port setting and adjusting the stack size so there is
enough room to recover from hitting the stack limit.
2016-06-28 11:28:51 +01:00
Damien George
e90b6ce0b5 py/mpthread.h: Move GIL macros outside MICROPY_PY_THREAD block.
The GIL macros are needed even if threading is not enabled.
2016-06-28 11:28:50 +01:00
Damien George
4cec63a9db py: Implement a simple global interpreter lock.
This makes the VM/runtime thread safe, at the cost of not being able to
run code in parallel.
2016-06-28 11:28:50 +01:00
Damien George
9172c0cb25 py/modthread: Call mp_thread_start/mp_thread_finish around threads.
So the underlying thread implementation can do any necessary bookkeeping.
2016-06-28 11:28:49 +01:00
Damien George
c93d9caa8b py/gc: Make memory manager and garbage collector thread safe.
By using a single, global mutex, all memory-related functions (alloc,
free, realloc, collect, etc) are made thread safe.  This means that only
one thread can be in such a function at any one time.
2016-06-28 11:28:49 +01:00
Damien George
801d1b3803 py/modthread: Implement lock object, for creating a mutex. 2016-06-28 11:28:49 +01:00
Damien George
707f98f207 py/modthread: Add stack_size() function. 2016-06-28 11:28:48 +01:00
Damien George
27cc07721b py: Add basic _thread module, with ability to start a new thread. 2016-06-28 11:28:48 +01:00