database/mariadb-columnstore-engine
1
0
Fork 0
mirror of https://github.com/mariadb-corporation/mariadb-columnstore-engine.git synced 2025-12-13 23:02:14 +03:00
Code Activity

Added 'k, m, g' suffix processing to Config class

Browse Source 
Started writing the Cache class.  Mostly stubs right now.
This commit is contained in:
Patrick LeBlanc
2019-02-21 16:19:29 -06:00
parent 449702895b
commit 402a49c27a
5 changed files with 141 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
src/Config.cpp
View File

@@ -63,12 +63,26 @@ Config::Config()
boost::property_tree::ini_parser::read_ini(filename, contents);
}
string use_envvar(boost::smatch envvar)
string use_envvar(const boost::smatch &envvar)
{
char *env = getenv(envvar[1].str().c_str());
return (env ? env : "");
}
string expand_numbers(const boost::smatch &match)
{
long num = stol(match[1].str());
char suffix = (char) ::tolower(match[2].str()[0]);
if (suffix == 'g')
num <<= 30;
else if (suffix == 'm')
num <<= 20;
else if (suffix == 'k')
num <<= 10;
return ::to_string(num);
}
string Config::getValue(const string &section, const string &key) const
{
// if we care, move this envvar substition stuff to where the file is loaded
@@ -76,6 +90,13 @@ string Config::getValue(const string &section, const string &key) const
boost::regex re("\\$\\{(.+)\\}");
ret = boost::regex_replace(ret, re, use_envvar);
// do the numeric substitutions. ex, the suffixes m, k, g
// ehhhhh. going to end up turning a string to a number, to a string, and then to a number again
// don't like that. OTOH who cares.
boost::regex num_re("^([[:digit:]]+)([mMkKgG])$", boost::regex::extended);
ret = boost::regex_replace(ret, num_re, expand_numbers);
return ret;
}