This patch adds the following three functions:
bits_to_bytes(bits) - the number of bytes needed to hold 'bits'
bytes_to_int32(bytes) - the number of 4-byte units to hold 'bytes'
pad_to_int32(bytes) - the closest multiple of 4 equal to or larger than
'bytes'.
All three operations are common in protocol processing and currently the
server has ((foo + 7)/8 + 3)/4 operations all over the place. A common set
of functions reduce the error rate of these (albeit simple) calculations and
improve readability of the code.
The functions do not check for overflow.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This patch requires extra special casing to check if the linker supports the
-wrap option. Patches to do so will follow, in the meantime, revert this
commit. It shouldn't have been pushed in the first place anyway.
This reverts commit d979f44394.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
This patch adds a test/ directory that contains the setup for a unit-testing
suite designed for in-server unit-testing. All functions available to the X
server are available to the test binaries through static linking.
This test suite uses the glib testing framework.
Do not use glib calls outside of the test/ directory.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>