Commit Graph

19 Commits

Author SHA1 Message Date
Damien George 6213ad7f46 py: Convert mp_uint_t to size_t for tuple/list accessors.
This patch changes mp_uint_t to size_t for the len argument of the
following public facing C functions:

mp_obj_tuple_get
mp_obj_list_get
mp_obj_get_array

These functions take a pointer to the len argument (to be filled in by the
function) and callers of these functions should update their code so the
type of len is changed to size_t.  For ports that don't use nan-boxing
there should be no change in generate code because the size of the type
remains the same (word sized), and in a lot of cases there won't even be a
compiler warning if the type remains as mp_uint_t.

The reason for this change is to standardise on the use of size_t for
variables that count memory (or memory related) sizes/lengths.  It helps
builds that use nan-boxing.
2017-03-29 12:56:17 +11:00
Damien George 94c41bb06f py: Use mp_raise_TypeError/mp_raise_ValueError helpers where possible.
Saves 168 bytes on bare-arm.
2017-03-28 22:37:26 +11:00
Damien George 05fe66f68a py: Move locals/globals dicts to the thread-specific state.
Each threads needs to have its own private references to its current
locals/globals dicts, otherwise functions running within different
contexts (eg imported from different files) can behave very strangely.
2017-03-06 17:01:56 +11:00
Damien George 234f07f16c py/modthread: Use system-provided mutexs for _thread locks.
It's more efficient using the system mutexs instead of synthetic ones with
a busy-wait loop.  The system can do proper scheduling and blocking of the
threads waiting on the mutex.
2017-02-15 11:28:02 +11:00
Damien George 7d0d7215d2 py: Use mp_raise_msg helper function where appropriate.
Saves the following number of bytes of code space: 176 for bare-arm, 352
for minimal, 272 for unix x86-64, 140 for stmhal, 120 for esp8266.
2016-10-17 12:17:37 +11:00
Damien George 3a0a771730 py: Add mp_raise_OSError(errno) helper function.
This is an often used code pattern, and its use reduces code size of the
core by about 100 bytes.
2016-10-07 13:31:59 +11:00
Damien George 93c4a6a3f7 all: Remove 'name' member from mp_obj_module_t struct.
One can instead lookup __name__ in the modules dict to get the value.
2016-09-22 00:23:16 +10:00
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 c567afc5fa py/modthread: Make Lock objects work when GIL is 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 722cff5fd0 py/modthread: Be more careful with root pointers when creating a thread. 2016-06-28 11:28:49 +01:00
Damien George 7f4658a7ee py/modthread: Satisfy unused-args warning. 2016-06-28 11:28:49 +01:00
Damien George 34fc006f5e py/modthread: Add with-context capabilities to lock object. 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 2dacd604c5 py/modthread: Add exit() function.
Simply raises the SystemExit exception.
2016-06-28 11:28:48 +01:00
Damien George 707f98f207 py/modthread: Add stack_size() function. 2016-06-28 11:28:48 +01:00
Damien George 3eb7a26809 py/modthread: Properly cast concrete exception pointer to an object. 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