suspect-devices/circuitpython/cc3200/mpthreadport.c, branch 3.0.0-alpha.0 CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=3.0.0-alpha.0 2016-10-19T03:24:56+00:00 cc3200: Fix thread mutex's so threading works with interrupts. 2016-10-19T03:24:56+00:00 Damien George damien.p.george@gmail.com 2016-10-19T03:24:56+00:00 urn:sha1:17ba6ef5fa7585d3e91dada3044e8e755cf99537 Running Python code on a hard interrupt is incompatible with having a GIL, because most of the time the GIL will be held by the user thread when the interrupt arrives. Hard interrupts mean that we should process them right away and hence can't wait until the GIL is released. The problem with the current code is that a hard interrupt will try to exit/enter the GIL while it is still held by the user thread, hence leading to a deadlock. This patch works around such a problem by just making GIL exit/enter a no-op when in an interrupt context, or when interrupts are disabled. See issue #2406. cc3200: Use mp_raise_XXX helper functions to reduce code size. 2016-10-17T22:53:43+00:00 Damien George damien.p.george@gmail.com 2016-10-17T22:53:43+00:00 urn:sha1:50ddaafa6acf5fbbe6f98e64fd5744a9a8347aff Reduces code size by 632 bytes. cc3200/mpthreadport: Move mem alloc outside the thread_mutex lock. 2016-06-28T10:28:52+00:00 Damien George damien.p.george@gmail.com 2016-05-31T16:34:13+00:00 urn:sha1:fa2ac93c3a7bbb7b368b4ea3ab3ede75396b14ac Otherwise there could be a deadlock, with the GC's mutex and thread_mutex. cc3200/mpthreadport: Scan more root pointers from thread data. 2016-06-28T10:28:52+00:00 Damien George damien.p.george@gmail.com 2016-05-31T16:32:37+00:00 urn:sha1:757146efe3b77d0f2fa47604a2c5dfd47550c12a cc3200/mpthreadport: Properly initialise the main thread's data. 2016-06-28T10:28:52+00:00 Damien George damien.p.george@gmail.com 2016-05-31T16:30:07+00:00 urn:sha1:3b0fbfe4e598db9673f1febbbc6df072ebcd8549 cc3200/mpthreadport: Make mutex statically allocated. 2016-06-28T10:28:52+00:00 Damien George damien.p.george@gmail.com 2016-05-31T16:28:53+00:00 urn:sha1:27241293c4f5ae26927f70fe03cdd86fa1819aa1 Reduced the need for the FreeRTOS heap to allocate the mutex. cc3200: Fix call to new exception to be _msg instead of _arg1. 2016-06-28T10:28:51+00:00 Damien George damien.p.george@gmail.com 2016-05-30T15:58:43+00:00 urn:sha1:c9520c591b8844470e0ae5f06f573add5a7172b4 py/modthread: Allow to properly set the stack limit of a thread. 2016-06-28T10:28:51+00:00 Damien George damien.p.george@gmail.com 2016-05-30T15:56:51+00:00 urn:sha1:df95f52583e0f5e3f2a74f7461bb00e2f24b3079 We rely on the port setting and adjusting the stack size so there is enough room to recover from hitting the stack limit. cc3200: Add basic threading capabilities. 2016-06-28T10:28:51+00:00 Damien George damien.p.george@gmail.com 2016-05-27T16:35:46+00:00 urn:sha1:eef4f13a3390dc88902563acb047f0439eff0caf Can create a new thread and run it. Does not use the GIL at this point.