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Improve sqlEscape performance.

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This commit is contained in:
JoelKatz
2013-01-09 23:52:01 -08:00
parent 34411001e6
commit 97e5223642
1 changed files with 21 additions and 2 deletions
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23
src/cpp/ripple/utils.h
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@@ -165,8 +165,27 @@ inline static std::string sqlEscape(const std::string& strSrc)
inline static std::string sqlEscape(const std::vector<unsigned char>& vecSrc)
{
static boost::format f("X'%s'");
return str(f % strHex(vecSrc));
size_t size = vecSrc.size();
if (size == 0)
return "X''";
std::string j(size * 2 + 3, 0);
unsigned char *oPtr = reinterpret_cast<unsigned char *>(&*j.begin());
const unsigned char *iPtr = &vecSrc[0];
*oPtr++ = 'X';
*oPtr++ = '\'';
for (int i = size; i != 0; --i)
{
unsigned char c = *iPtr++;
*oPtr++ = charHex(c >> 4);
*oPtr++ = charHex(c & 15);
}
*oPtr++ = '\'';
return j;
}
template<class Iterator>