suspect-devices/circuitpython/py/mpstate.h, branch v1.5.2 CircuitPython - a Python implementation for teaching coding with microcontrollers https://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=v1.5.2 2015-12-17T12:41:40+00:00 py/qstr: Use size_t instead of mp_uint_t when counting allocated bytes. 2015-12-17T12:41:40+00:00 Damien George damien.p.george@gmail.com 2015-12-17T12:41:40+00:00 urn:sha1:257848587fb03879e145a34c8065927cf4d1532f py/gc: Use size_t instead of mp_uint_t to count things related to heap. 2015-12-17T01:09:11+00:00 Damien George damien.p.george@gmail.com 2015-12-17T01:09:11+00:00 urn:sha1:d977d268e848c1005d9105ebb6d789fb31b06c03 size_t is the correct type to use to count things related to the size of the address space. Using size_t (instead of mp_uint_t) is important for the efficiency of ports that configure mp_uint_t to larger than the machine word size. py/modsys: Implement sys.modules. 2015-12-04T22:13:29+00:00 Paul Sokolovsky pfalcon@users.sourceforge.net 2015-12-04T22:09:10+00:00 urn:sha1:1a1d11fa32ba043d22995d28cbc039cfa5f3cc46 This for example will allow people to reload modules which didn't load successfully (e.g. due to syntax error). py: Wrap all obj-ptr conversions in MP_OBJ_TO_PTR/MP_OBJ_FROM_PTR. 2015-11-29T14:25:35+00:00 Damien George damien.p.george@gmail.com 2015-11-27T17:01:44+00:00 urn:sha1:999cedb90ff0827cdb9dfe0e4faa6ebc1739d271 This allows the mp_obj_t type to be configured to something other than a pointer-sized primitive type. This patch also includes additional changes to allow the code to compile when sizeof(mp_uint_t) != sizeof(void*), such as using size_t instead of mp_uint_t, and various casts. py/gc: Move away from using mp_uint_t, instead use uintptr_t and size_t. 2015-11-29T14:25:04+00:00 Damien George damien.p.george@gmail.com 2015-11-27T13:07:48+00:00 urn:sha1:94fe6e523d42ecc342c1f6a9734ed2edf232ddbd The GC works with concrete pointers and so the types should reflect this. py/mpstate: Make mp_pending_exception volatile. 2015-11-17T14:27:21+00:00 Damien George damien.p.george@gmail.com 2015-11-17T14:27:21+00:00 urn:sha1:994ff738c8f12c1f7fd994ed45b2e191a9bc6ee4 It can change asynchronously. extmod/modlwip: slip: Use stream protocol and be port-independent. 2015-10-26T21:04:59+00:00 Paul Sokolovsky pfalcon@users.sourceforge.net 2015-10-26T21:04:33+00:00 urn:sha1:e0d7740a2294ed6bc7c6237f1a12413e0c5a9ce1 Based on the original patch by Galen Hazelwood: https://github.com/micropython/micropython/pull/1517 . py: Improve allocation policy of qstr data. 2015-07-14T21:56:32+00:00 Damien George damien.p.george@gmail.com 2015-06-13T20:53:22+00:00 urn:sha1:ade9a052365247be5ed4ce8b53c2164a576a4a05 Previous to this patch all interned strings lived in their own malloc'd chunk. On average this wastes N/2 bytes per interned string, where N is the number-of-bytes for a quanta of the memory allocator (16 bytes on 32 bit archs). With this patch interned strings are concatenated into the same malloc'd chunk when possible. Such chunks are enlarged inplace when possible, and shrunk to fit when a new chunk is needed. RAM savings with this patch are highly varied, but should always show an improvement (unless only 3 or 4 strings are interned). New version typically uses about 70% of previous memory for the qstr data, and can lead to savings of around 10% of total memory footprint of a running script. Costs about 120 bytes code size on Thumb2 archs (depends on how many calls to gc_realloc are made). modsys: Add basic sys.exc_info() implementation. 2015-04-25T00:49:23+00:00 Paul Sokolovsky pfalcon@users.sourceforge.net 2015-04-25T00:17:41+00:00 urn:sha1:8b85d14b92a65e92862861038c0fe96e6c616c3e The implementation is very basic and non-compliant and provided solely for CPython compatibility. The function itself is bad Python2 heritage, its usage is discouraged. py: Put mp_sys_path, mp_sys_argv and gc_collected in mp_state_ctx_t. 2015-02-07T17:24:10+00:00 Damien George damien.p.george@gmail.com 2015-02-07T17:24:10+00:00 urn:sha1:e1e359ff59d6bbf09441cc1f3965be63f1046182 Without mp_sys_path and mp_sys_argv in the root pointer section of the state, their memory was being incorrectly collected by GC.