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epee: some more minor JSON parsing speedup

This commit is contained in:
moneromooo-monero 2018-12-27 19:15:05 +00:00
parent e4b049da05
commit 59776a64ff
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GPG Key ID: 686F07454D6CEFC3
4 changed files with 11 additions and 8 deletions
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6
contrib/epee/include/net/http_client.h
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@ -834,21 +834,21 @@ namespace net_utils
const char *ptr = m_header_cache.c_str();
CHECK_AND_ASSERT_MES(!memcmp(ptr, "HTTP/", 5), false, "Invalid first response line: " + m_header_cache);
ptr += 5;
CHECK_AND_ASSERT_MES(isdigit(*ptr), false, "Invalid first response line: " + m_header_cache);
CHECK_AND_ASSERT_MES(epee::misc_utils::parse::isdigit(*ptr), false, "Invalid first response line: " + m_header_cache);
unsigned long ul;
char *end;
ul = strtoul(ptr, &end, 10);
CHECK_AND_ASSERT_MES(ul <= INT_MAX && *end =='.', false, "Invalid first response line: " + m_header_cache);
m_response_info.m_http_ver_hi = ul;
ptr = end + 1;
CHECK_AND_ASSERT_MES(isdigit(*ptr), false, "Invalid first response line: " + m_header_cache + ", ptr: " << ptr);
CHECK_AND_ASSERT_MES(epee::misc_utils::parse::isdigit(*ptr), false, "Invalid first response line: " + m_header_cache + ", ptr: " << ptr);
ul = strtoul(ptr, &end, 10);
CHECK_AND_ASSERT_MES(ul <= INT_MAX && isblank(*end), false, "Invalid first response line: " + m_header_cache + ", ptr: " << ptr);
m_response_info.m_http_ver_lo = ul;
ptr = end + 1;
while (isblank(*ptr))
++ptr;
CHECK_AND_ASSERT_MES(isdigit(*ptr), false, "Invalid first response line: " + m_header_cache);
CHECK_AND_ASSERT_MES(epee::misc_utils::parse::isdigit(*ptr), false, "Invalid first response line: " + m_header_cache);
ul = strtoul(ptr, &end, 10);
CHECK_AND_ASSERT_MES(ul >= 100 && ul <= 999 && isspace(*end), false, "Invalid first response line: " + m_header_cache);
m_response_info.m_response_code = ul;

7
contrib/epee/include/storages/parserse_base_utils.h
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@ -42,13 +42,14 @@ namespace misc_utils
// 4: alpha
// 8: whitespace
// 16: allowed in float but doesn't necessarily mean it's a float
// 32: \ and " (end of verbatim string)
static const constexpr uint8_t lut[256]={
0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 8, 8, 8, 8, 0, 0, // 16
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 32
8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 0, 16, 18, 0, // 48
8, 0, 32, 0, 0, 0, 0, 0, 0, 0, 0, 16, 0, 16, 18, 0, // 48
17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 0, 0, 0, 0, 0, 0, // 64
0, 4, 4, 4, 4, 22, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, // 80
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, // 96
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 32, 0, 0, 0, // 96
0, 4, 4, 4, 4, 22, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, // 112
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, // 128
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@ -130,7 +131,7 @@ namespace misc_utils
std::string::const_iterator it = star_end_string;
++it;
std::string::const_iterator fi = it;
while (fi != buf_end && *fi != '\\' && *fi != '\"')
while (fi != buf_end && ((lut[(uint8_t)*fi] & 32)) == 0)
++fi;
val.assign(it, fi);
val.reserve(std::distance(star_end_string, buf_end));

2
contrib/epee/include/storages/portable_storage_val_converters.h
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@ -144,7 +144,7 @@ POP_WARNINGS
{
MTRACE("Converting std::string to uint64_t. Source: " << from);
// String only contains digits
if(std::all_of(from.begin(), from.end(), ::isdigit))
if(std::all_of(from.begin(), from.end(), epee::misc_utils::parse::isdigit))
to = boost::lexical_cast<uint64_t>(from);
// MyMonero ISO 8061 timestamp (2017-05-06T16:27:06Z)
else if (boost::regex_match (from, boost::regex("\\d{4}-[01]\\d-[0-3]\\dT[0-2]\\d:[0-5]\\d:[0-5]\\dZ")))

4
contrib/epee/include/string_tools.h
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@ -42,6 +42,8 @@
#include <type_traits>
#include <boost/lexical_cast.hpp>
#include <boost/algorithm/string/predicate.hpp>
#include "misc_log_ex.h"
#include "storages/parserse_base_utils.h"
#include "hex.h"
#include "memwipe.h"
#include "mlocker.h"
@ -126,7 +128,7 @@ DISABLE_GCC_WARNING(maybe-uninitialized)
{
for (char c : str_id)
{
if (!std::isdigit(c))
if (!epee::misc_utils::parse::isdigit(c))
return false;
}
}