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Author SHA1 Message Date
Damien George fa2ac93c3a cc3200/mpthreadport: Move mem alloc outside the thread_mutex lock. 
Otherwise there could be a deadlock, with the GC's mutex and
thread_mutex.
 2016-06-28 11:28:52 +01:00
Damien George 757146efe3 cc3200/mpthreadport: Scan more root pointers from thread data. 2016-06-28 11:28:52 +01:00
Damien George 17886828c8 cc3200/gccollect: Use MP_STATE_THREAD(stack_top) to get top of stack. 2016-06-28 11:28:52 +01:00
Damien George 3b0fbfe4e5 cc3200/mpthreadport: Properly initialise the main thread's data. 2016-06-28 11:28:52 +01:00
Damien George 27241293c4 cc3200/mpthreadport: Make mutex statically allocated. 
Reduced the need for the FreeRTOS heap to allocate the mutex.
 2016-06-28 11:28:52 +01:00
Damien George 0455755296 cc3200: Use xTaskCreateStatic instead of osi_TaskCreate. 
This allows to statically allocate the TCB (thread control block) and
thread stack in the BSS segment, reducing the need for dynamic memory
allocation.
 2016-06-28 11:28:52 +01:00
Damien George 77e37ff98b py/mpthread: Include mpstate.h when defining GIL macros. 2016-06-28 11:28:52 +01:00
Damien George 15e68277c1 tests/thread: Make sure that thread tests don't rely on floating point. 2016-06-28 11:28:52 +01:00
Damien George 5b7789d519 tests/thread: Make stack-size test run correctly and reliable on uPy. 2016-06-28 11:28:52 +01:00
Damien George 94238d4ae5 py/nlrsetjmp: Update to take into account new location of nlr_top. 
It's now accessed via the MP_STATE_THREAD macro.
 2016-06-28 11:28:52 +01:00
Damien George 1df4168c33 py/nlrthumb: Convert NLR thumb funcs from asm to C with inline-asm. 
Now only the bits that really need to be written in assembler are written
in it, otherwise C is used.  This means that the assembler code no longer
needs to know about the global state structure which makes it much easier
to maintain.
 2016-06-28 11:28:52 +01:00
Damien George c9520c591b cc3200: Fix call to new exception to be _msg instead of _arg1. 2016-06-28 11:28:51 +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 eef4f13a33 cc3200: Add basic threading capabilities. 
Can create a new thread and run it.  Does not use the GIL at this point.
 2016-06-28 11:28:51 +01:00
Damien George 9b1c1262dc cc3200: Define our own FreeRTOS heap so it can go in a special segment. 2016-06-28 11:28:50 +01:00
Damien George 5c0fc73f33 cc3200: Update FreeRTOS to v9.0.0. 
This is a pristine copy (actually a subset of files) of upstream FreeRTOS
v9.0.0.

Modifications to the previous version of FreeRTOS (v8.1.2) included
addition of __attribute__ ((section (".boot"))) to the following
functions:

    pxPortInitialiseStack
    prvTaskExitError
    prvPortStartFirstTask
    xPortStartScheduler
    vPortSetupTimerInterrupt
    xTaskGenericCreate
    vTaskStartScheduler
    prvInitialiseTCBVariables
    prvInitialiseTaskLists
    prvAllocateTCBAndStack

This attribute will need to be reinstated on a case-by-case basis
because some of the above functions are now removed/changed.
 2016-06-28 11:28:50 +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 94d2919b77 unix/modtime: Release the GIL when sleeping. 2016-06-28 11:28:50 +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 a1c93a62b1 py: Don't use gc or qstr mutex when the GIL is enabled. 
There is no need since the GIL already makes gc and qstr operations
atomic.
 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 1f54ad2aed py: Make interning of qstrs thread safe. 2016-06-28 11:28:50 +01:00
Damien George b7274e91bc tests/thread: Add test for concurrent mutating of user instance. 2016-06-28 11:28:50 +01:00
Damien George 2e4cdae4fd tests/thread: Add test for concurrent interning of strings. 
Qstr code accesses global state and needs to be made thread safe.
 2016-06-28 11:28:50 +01:00
Damien George 094a0dd11a tests/thread: Add tests that mutate shared objects. 
Tests concurrent mutating access to: list, dict, set, bytearray.
 2016-06-28 11:28:50 +01:00