Commit Graph

73 Commits

Author SHA1 Message Date
Damien George 109c1de015 py: Make gc.enable/disable just control auto-GC; alloc is still allowed.
gc.enable/disable are now the same as CPython: they just control whether
automatic garbage collection is enabled or not.  If disabled, you can
still allocate heap memory, and initiate a manual collection.
2014-10-31 21:30:46 +00:00
Damien George 124df6f8d0 py: Add mp_pending_exception global variable, for VM soft interrupt.
This allows to implement KeyboardInterrupt on unix, and a much safer
ctrl-C in stmhal port.  First ctrl-C is a soft one, with hope that VM
will notice it; second ctrl-C is a hard one that kills anything (for
both unix and stmhal).

One needs to check for a pending exception in the VM only for jump
opcodes.  Others can't produce an infinite loop (infinite recursion is
caught by stack check).
2014-10-25 23:37:57 +01:00
Damien George e7a478204a py: Remove unused and unneeded SystemError exception.
It's purpose is for internal errors that are not catastrophic (ie not as
bad as RuntimeError).  Since we don't use it, we don't need it.
2014-10-22 19:42:55 +01:00
Damien George 4859edb95b py: Fix dummy definition of BEGIN/END_ATOMIC_SECTION. 2014-10-15 17:33:24 +00:00
Damien George 8b03d944e2 py: Remove IOError since it's deprecated; use OSError instead.
In CPython IOError (and EnvironmentError) is deprecated and aliased to
OSError.  All modules that used to raise IOError now raise OSError (or a
derived exception).

In Micro Python we never used IOError (except 1 place, incorrectly) and
so don't need to keep it.

See http://legacy.python.org/dev/peps/pep-3151/ for background.
2014-09-30 13:59:30 +00:00
Damien George 4bcd04bcad py: Tidy up exception matching; allow matching of tuple of exceptions.
Addresses issue #864.
2014-09-25 15:49:26 +01:00
Damien George d182b98a37 py: Change all uint to mp_uint_t in obj.h.
Part of code cleanup, working towards resolving issue #50.
2014-08-30 14:19:41 +01:00
Damien George 9c4cbe2ac0 py: Make tuple and list use mp_int_t/mp_uint_t.
Part of code cleanup, to resolve issue #50.
2014-08-30 14:04:14 +01:00
Damien George ecc88e949c Change some parts of the core API to use mp_uint_t instead of uint/int.
Addressing issue #50, still some way to go yet.
2014-08-30 00:35:11 +01:00
Damien George e5cbb70328 stmhal: Make enable_irq and disable_irq inline functions.
These functions are generally 1 machine instruction, and are used in
critical code, so makes sense to have them inline.

Also leave these functions uninverted (ie 0 means enable, 1 means
disable) and provide macro constants if you really need to distinguish
the states.  This makes for smaller code as well (combined with
inlining).

Applied to teensy port as well.
2014-08-25 13:24:33 +01:00
Dave Hylands 9480138f0c Add save/restore_irq
Factored irq functions into a separate file.
2014-08-25 12:22:11 +01:00
Dave Hylands 5b7fd20fea Add support for storing args during an exception raised by an irq.
The user code should call micropython.alloc_emergency_exception_buf(size)
where size is the size of the buffer used to print the argument
passed to the exception.

With the test code from #732, and a call to
micropython.alloc_emergenncy_exception_buf(100) the following error is
now printed:
```python
>>> import heartbeat_irq
Uncaught exception in Timer(4) interrupt handler
Traceback (most recent call last):
  File "0://heartbeat_irq.py", line 14, in heartbeat_cb
NameError: name 'led' is not defined
```
2014-07-25 14:00:06 -07:00
Damien George 40f3c02682 Rename machine_(u)int_t to mp_(u)int_t.
See discussion in issue #50.
2014-07-03 13:25:24 +01:00
Damien George f0b29729aa py, objexcept: Only check for locked gc if gc is enabled. 2014-07-01 14:28:09 +01:00
Dave Hylands 2fe841d2fa Try not to cause a MemoryError when raising an exception during nterrupt handling.
Step 1 fixes #732
2014-06-30 22:49:21 -07:00
Chris Angelico daf973ae00 Change comments (mainly URLs) to no longer specifically say Python 3.3 2014-06-06 03:51:03 +10:00
Damien George 2617eebf2f Change const byte* to const char* where sensible.
This removes need for some casts (at least, more than it adds need
for new casts!).
2014-05-25 22:27:57 +01:00
Damien George 7a4ddd2428 Add SystemExit exception and use it in unix/ and stmhal/ ports.
Addresses issue #598.
2014-05-24 23:32:19 +01:00
Damien George 0fd01683c6 Merge pull request #607 from Anton-2/osx-clang
Allow compilation of unix port under clang on OS X
2014-05-21 19:51:05 +01:00
Paul Sokolovsky 52386cafa0 objexcept: Implement explicit __init__ method, useful for subclasses. 2014-05-19 21:56:07 +03:00
Antonin ENFRUN da1fffaa09 Fix some unused variables, and silence a clang warning about initialization override in vmentrytable.h 2014-05-12 09:06:18 +02:00
Damien George 2323ef9182 py: Rename globally-accessible tuple functions, prefix with mp_obj_.
Likely there are other functions that should be renamed, but this is a
start.
2014-05-11 18:00:45 +01:00
Damien George 04b9147e15 Add license header to (almost) all files.
Blanket wide to all .c and .h files.  Some files originating from ST are
difficult to deal with (license wise) so it was left out of those.

Also merged modpyb.h, modos.h, modstm.h and modtime.h in stmhal/.
2014-05-03 23:27:38 +01:00
Paul Sokolovsky f54bcbf099 py, unix: Make "mpconfig.h" be first included, as other headers depend on it.
Specifically, nlr.h does.
2014-05-02 17:48:40 +03:00
Paul Sokolovsky 91e556af23 objexcept: Support tracebacks for user Exception subclasses. 2014-05-02 02:31:30 +03:00
Paul Sokolovsky d8351ca8a0 objtype: .print() Exception instances in adhoc way.
This is ugly, just as expected.
2014-05-02 02:00:47 +03:00
Paul Sokolovsky 1acf22f17b objexcept: Don't store args tuple within exception object.
To avoid pointer-to-field GC problem.
2014-04-23 04:07:00 +03:00
Paul Sokolovsky dec31bb872 objexcept: Add mp_obj_new_exception_arg1() convenience function. 2014-04-22 00:02:51 +03:00
Damien George 58ba4c3b4c py: Check explicitly for memory allocation failure in parser.
Previously, a failed malloc/realloc would throw an exception, which was
not caught.  I think it's better to keep the parser free from NLR
(exception throwing), hence this patch.
2014-04-10 14:27:31 +00:00
Damien George f0954e3fac py: Add emergency exception object for when heap allocation fails. 2014-04-10 14:38:25 +01:00
Damien George ea13f407a3 py: Change nlr_jump to nlr_raise, to aid in debugging.
This does not affect code size or performance when debugging turned off.

To address issue #420.
2014-04-05 18:32:08 +01:00
Damien George 6902eeda25 py: Add m_malloc_fail function to handle memory allocation error.
A malloc/realloc fail now throws MemoryError.
2014-04-04 10:52:59 +00:00
Paul Sokolovsky a96d3d0840 objexcept: No more magic messages in exceptions, only exception arguments.
One of the reason for separate "message" (besides still unfulfilled desire to
optimize memory usage) was apparent special handling of exception with
messages by CPython. Well, the message is still just an exception argument,
it just printed specially. Implement that with PRINT_EXC printing format.
2014-03-31 02:23:56 +03:00
Damien George d17926db71 Rename rt_* to mp_*.
Mostly just a global search and replace.  Except rt_is_true which
becomes mp_obj_is_true.

Still would like to tidy up some of the names, but this will do for now.
2014-03-30 13:35:08 +01:00
Paul Sokolovsky 24a140a444 objexcept: Fix another place missing proper args tuple initialization. 2014-03-30 13:29:33 +03:00
Damien George 07ddab529c py: Change mp_const_* objects to macros.
Addresses issue #388.
2014-03-29 13:15:08 +00:00
Paul Sokolovsky c4d589e2bb objgenerator: close(): Throw instance of GeneratorExit (not type).
To comply with Python semantics and allow use of mp_obj_is_subclass_fast()
for exception matching.
2014-03-28 02:40:26 +02:00
Damien George c63f984647 py: Thin out predefined exceptions.
Only exceptions that are actually used are left prefedined.  Hierarchy
is still there, and removed exceptions are just commented out.
2014-03-27 23:49:06 +00:00
Damien George 9c817b9465 Merge branch 'master' of github.com:micropython/micropython 2014-03-26 18:56:02 +00:00
Damien George 752ba554cc Merge branch 'gen-close-ret-val' of github.com:pfalcon/micropython into pfalcon-gen-close-ret-val 2014-03-26 18:46:06 +00:00
Damien George 9e6e935df0 py: Add support for user-defined iterators via __iter__, __next__. 2014-03-26 18:37:06 +00:00
Paul Sokolovsky af1ae30399 objexcept: Add mp_obj_exception_get_value() convenience function.
This gets "value" of exceptions in the sense as it's defined for
StopIteration.value (i.e. args[0] or None).

TODO: This really should be inline function.
2014-03-26 19:29:36 +02:00
Paul Sokolovsky 962b1cd1b1 objgenerator: Implement return with value and .close() method.
Return with value gets converted to StopIteration(value). Implementation
keeps optimizing against creating of possibly unneeded exception objects,
so there're considerable refactoring to implement these features.
2014-03-26 15:40:58 +02:00
Damien George ffb5cfc8d8 py: Removed some unnecessary exception objects.
They still exist in commented-out form in objexcept.c if they are ever
needed.
2014-03-25 14:29:40 +00:00
Paul Sokolovsky 9512e9e817 objexcept: Add "args" exception attribute, as well as StopIteration.value. 2014-03-25 01:42:01 +02:00
Damien George c91097223d py: Remove some unnecessary exception objects. 2014-03-22 23:40:02 +00:00
Rachel Dowdall 721c55dced Added exception hierarchy except for OSError and UnicodeError (requires arguments). Comment out the errors that aren't needed if memory becomes an issue. 2014-03-22 15:28:16 +00:00
Rachel Dowdall 300c8bd4c2 Added ZeroDivisionError to float division. 2014-03-20 22:40:38 +00:00
xbe efe3422394 py: Clean up includes.
Remove unnecessary includes. Add includes that improve portability.
2014-03-17 02:43:40 -07:00
Damien George 0ec6bd47cb py: Fix printing of type name. 2014-03-09 16:29:36 +00:00