Avoid use of the expensive mod operator (%) when calculating the
buffer offset. No functional difference.
Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
The fs.* files are already part of the libbitcoin_util library. With the
introduction of the fs_helpers.* it makes sense to move fs.* into the
util/ directory as well.
SkipTo() reads data from the file into the CBufferedFile object
(memory), but, unlike this object's read() method, SkipTo() doesn't
transfer data into a caller's memory buffer. This is useful because
after skipping forward in the stream in this way, the user can, if
needed, rewind the stream (SetPos()) and access the object's memory
buffer including ranges that were skipped over (without needing to
read from the disk file).
Warning: Replacing fs::system_complete calls with fs::absolute calls
in this commit may cause minor changes in behaviour because fs::absolute
no longer strips trailing slashes; however these changes are believed to
be safe.
Co-authored-by: Russell Yanofsky <russ@yanofsky.org>
Co-authored-by: Hennadii Stepanov <32963518+hebasto@users.noreply.github.com>
This removes the ability to set an offset in the SpanReader constructor,
as the current code is broken. All call sites use pos=0, so it is actually
unused. If future call sites need it, SpanReader{a, b, c, d} is equivalent
to SpanReader{a, b, c.subspan(d)}.
It also removes the ability to deserialize from SpanReader directly from
the constructor. This too is unused, and can be more idiomatically
simulated using (SpanReader{a, b, c} >> x >> y >> z) instead of
SpanReader{a, b, c, x, y, z}.
The tests `streams_tests/streams_buffered_file` and `streams_tests/streams_buffered_file_rand`
did not use a the temporary directory provided by `BasicTestingSetup`, so it was not possible
to execute multiple of them in parallel. This fixes that.
To reproduce, run
```sh
parallel --halt now,fail=1 './src/test/test_bitcoin --run_test=streams_tests/streams_buffered_file_rand' -- ::: {1..1000}
```
This executes the test 1000 times, one job per CPU. It works on that commit but mergebase fails quickly.
e.g.:
In file included from /usr/local/include/boost/test/test_tools.hpp:46:
/usr/local/include/boost/test/tools/old/impl.hpp:107:17: error: comparison of integers of different signs: 'const unsigned int' and 'const int' [-Werror,-Wsign-compare]
return left == right;
~~~~ ^ ~~~~~
/usr/local/include/boost/test/tools/old/impl.hpp:130:16: note: in instantiation of function template specialization 'boost::test_tools::tt_detail::equal_impl<unsigned int, int>' requested here
return equal_impl( left, right );
^
/usr/local/include/boost/test/tools/old/impl.hpp:145:16: note: in instantiation of function template specialization 'boost::test_tools::tt_detail::equal_impl_frwd::call_impl<unsigned int, int>' requested here
return call_impl( left, right, left_is_array() );
^
/usr/local/include/boost/test/tools/old/impl.hpp:92:50: note: in instantiation of function template specialization 'boost::test_tools::tt_detail::equal_impl_frwd::operator()<unsigned int, int>' requested here
BOOST_PP_REPEAT( BOOST_TEST_MAX_PREDICATE_ARITY, IMPL_FRWD, _ )
^
/usr/local/include/boost/preprocessor/repetition/repeat.hpp:30:26: note: expanded from macro 'BOOST_PP_REPEAT'
^
/usr/local/include/boost/preprocessor/cat.hpp:22:32: note: expanded from macro 'BOOST_PP_CAT'
^
/usr/local/include/boost/preprocessor/cat.hpp:29:34: note: expanded from macro 'BOOST_PP_CAT_I'
^
<scratch space>:153:1: note: expanded from here
BOOST_PP_REPEAT_1
^
test/streams_tests.cpp:122:5: note: in instantiation of function template specialization 'boost::test_tools::tt_detail::check_frwd<boost::test_tools::tt_detail::equal_impl_frwd, unsigned int, int>' requested here
BOOST_CHECK_EQUAL(varint, 54321);
^
/usr/local/include/boost/test/tools/old/impl.hpp:107:17: error: comparison of integers of different signs: 'const unsigned long long' and 'const long' [-Werror,-Wsign-compare]
return left == right;
~~~~ ^ ~~~~~
/usr/local/include/boost/test/tools/old/impl.hpp:130:16: note: in instantiation of function template specialization 'boost::test_tools::tt_detail::equal_impl<unsigned long long, long>' requested here
return equal_impl( left, right );
^
/usr/local/include/boost/test/tools/old/impl.hpp:145:16: note: in instantiation of function template specialization 'boost::test_tools::tt_detail::equal_impl_frwd::call_impl<unsigned long long, long>' requested here
return call_impl( left, right, left_is_array() );
^
/usr/local/include/boost/test/tools/old/impl.hpp:92:50: note: in instantiation of function template specialization 'boost::test_tools::tt_detail::equal_impl_frwd::operator()<unsigned long long, long>' requested here
BOOST_PP_REPEAT( BOOST_TEST_MAX_PREDICATE_ARITY, IMPL_FRWD, _ )
^
/usr/local/include/boost/preprocessor/repetition/repeat.hpp:30:26: note: expanded from macro 'BOOST_PP_REPEAT'
^
/usr/local/include/boost/preprocessor/cat.hpp:22:32: note: expanded from macro 'BOOST_PP_CAT'
^
/usr/local/include/boost/preprocessor/cat.hpp:29:34: note: expanded from macro 'BOOST_PP_CAT_I'
^
<scratch space>:161:1: note: expanded from here
BOOST_PP_REPEAT_1
^
test/serfloat_tests.cpp:41:5: note: in instantiation of function template specialization 'boost::test_tools::tt_detail::check_frwd<boost::test_tools::tt_detail::equal_impl_frwd, unsigned long long, long>' requested here
BOOST_CHECK_EQUAL(TestDouble(std::numeric_limits<double>::infinity()), 0x7ff0000000000000);
^
fa29272459 Remove redundant MakeUCharSpan wrappers (MarcoFalke)
faf4aa2f47 Remove CDataStream::Init in favor of C++11 member initialization (MarcoFalke)
fada14b948 Treat CDataStream bytes as uint8_t (MarcoFalke)
fa8bdb048e refactor: Drop CDataStream constructors in favor of one taking a Span of bytes (MarcoFalke)
faa96f841f Remove unused CDataStream methods (MarcoFalke)
Pull request description:
Using `uint8_t` for raw bytes has a style benefit:
* The signedness is clear from reading the code, as it does not depend on the architecture
Other clean-ups in this pull include:
* Remove unused methods
* Constructor is simplified with `Span`
* Remove `Init()` member in favor of C++11 member initialization
ACKs for top commit:
laanwj:
code review ACK fa29272459
theStack:
ACK fa29272459🍾
Tree-SHA512: 931ee28bd99843d7e894b48e90e1187ffb0278677c267044b3c0c255069d9bbd9298ab2e539b1002a30b543d240450eaec718ef4ee95a7fd4be0a295e926343f
fae43a97ca test: Seed test RNG context for each test case, print seed (MarcoFalke)
Pull request description:
Debugging failing unit tests is hard if the failure is non-deterministic and the seed is not known.
Fix that by printing the seed and making it possible to set the seed from outside.
ACKs for top commit:
davereikher:
Tested ACK fae43a97ca
Tree-SHA512: 33d848dd1f4180d3664ecf60e9810c2a93590c05276b2c46b1e4fe6e376b45916a46b90c803bb602750ab666da3a05ce499e550024685a90b8cc38fab6667cb8
Support is added to serialize arrays of type char or unsigned char directly,
without any wrappers. All invocations of the FLATDATA wrappers that are
obsoleted by this are removed.
This includes a patch by Russell Yanofsky to make char casting type safe.
The serialization of CSubNet is changed to serialize a bool directly rather
than though FLATDATA. This makes the serialization independent of the size
of the bool type (and will use 1 byte everywhere).
CVectorWriter is useful for overwriting or appending an existing byte vector.
CNetMsgMaker is a shortcut for creating messages on-the-fly which are suitable
for pushing to CConnman.
Adds an `obfuscate` parameter to `CLevelDBWrapper` and makes use of it
for all new chainstate stores built via `CCoinsViewDB`. Also adds an
`Xor` method to `CDataStream`.
Thanks to @sipa @laanwj @pstratem @dexX7 @KyrosKrane @gmaxwell.
