If you have longish operations on the db (such as logging data) it may
be desirable to periodically sync the database to the disk. The added
btree.sync() method merely exposes the berkley __bt_sync function to the
user.
The constants MP_IOCTL_POLL_xxx, which were stmhal-specific, are moved
from stmhal/pybioctl.h (now deleted) to py/stream.h. And they are renamed
to MP_STREAM_POLL_xxx to be consistent with other such constants.
All uses of these constants have been updated.
If the destination of os.rename() exists then it will be overwritten if it
is a file. This is the POSIX behaviour, which is also the CPython
behaviour, and so we follow suit.
See issue #2598 for discussion.
Fill is a very common operation (eg to clear the screen) and it is worth
optimising it, by providing a specialised fill_rect function for each
framebuffer format.
This patch improved the speed of fill by 10 times for a 16-bit display
with 160*128 pixels.
Rename FrameBuffer1 into FrameBuffer and make it handle different bit
depths via a method table that has getpixel and setpixel. Currently
supported formats are MVLSB (monochrome, vertical, LSB) and RGB565.
Also add blit() and fill_rect() methods.
Paul Sokolovsky
w4kpm
Damien George
Radomir Dopieralski