mirrors/scylladb
1
0
Fork 0
mirror of https://github.com/scylladb/scylladb.git synced 2026-04-22 01:20:39 +00:00
Code Issues Packages Projects Releases Wiki Activity

extract on-disk integer parsing

Browse Source 
Signed-off-by: Glauber Costa <glommer@cloudius-systems.com>
This commit is contained in:
Glauber Costa
2015-03-23 15:33:34 -03:00
committed by Avi Kivity
parent 9284d1c8d1
commit 074f69806a
1 changed files with 8 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
sstables/sstables.cc
View File

@@ -92,14 +92,20 @@ static void check_buf_size(temporary_buffer<char>& buf, size_t expected) {
}
// Base parser, parses an integer type
template <typename T>
typename std::enable_if_t<std::is_integral<T>::value, void>
read_integer(temporary_buffer<char>& buf, T& i) {
auto *nr = reinterpret_cast<const net::packed<T> *>(buf.get());
i = net::ntoh(*nr);
}
template <typename T>
typename std::enable_if_t<std::is_integral<T>::value, future<>>
parse(file_input_stream& in, T& i) {
return in.read_exactly(sizeof(T)).then([&i] (auto buf) {
check_buf_size(buf, sizeof(T));
auto *nr = reinterpret_cast<const net::packed<T> *>(buf.get());
i = net::ntoh(*nr);
read_integer(buf, i);
return make_ready_future<>();
});
}