This CL makes the following changes to RangeSet:
- Uses std::pair<size_t, size_t> to represent a Range;
- Uses std::vector<Range> to represent a RangeSet;
- Provides const iterators (forward and reverse);
- Provides const accessor;
- 'blocks()' returns the number of blocks (formerly 'size');
- 'size()' returns the number of Range's (formerly 'count').
Test: recovery_unit_test
Test: Apply an incremental update with the new updater.
Change-Id: Ia1fbb343370a152e1f7aa050cf914c2da09b1396
Also move RangeSet into a header file to make it testable, and add unit
tests.
In RangeSet::Parse() (the former parse_range()), use libbase logging to
do assertions. This has the same effect as the previous
exit(EXIT_FAILURE) to terminate the updater process and abort an update.
The difference lies in the exit status code (i.e. WEXITSTATUS(status) in
install.cpp), which changes from 1 (i.e. EXIT_FAILURE) to 0.
Test: recovery_unit_test
Test: Apply an incremental update with the new updater.
Change-Id: Ie8393c78b0d8ae0fd5f0ca0646d871308d71fff0
