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epee: some more minor JSON parsing speedup

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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(); const char *ptr = m_header_cache.c_str();
CHECK_AND_ASSERT_MES(!memcmp(ptr, "HTTP/", 5), false, "Invalid first response line: " + m_header_cache); CHECK_AND_ASSERT_MES(!memcmp(ptr, "HTTP/", 5), false, "Invalid first response line: " + m_header_cache);
ptr += 5; 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; unsigned long ul;
char *end; char *end;
ul = strtoul(ptr, &end, 10); ul = strtoul(ptr, &end, 10);
CHECK_AND_ASSERT_MES(ul <= INT_MAX && *end =='.', false, "Invalid first response line: " + m_header_cache); CHECK_AND_ASSERT_MES(ul <= INT_MAX && *end =='.', false, "Invalid first response line: " + m_header_cache);
m_response_info.m_http_ver_hi = ul; m_response_info.m_http_ver_hi = ul;
ptr = end + 1; 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); ul = strtoul(ptr, &end, 10);
CHECK_AND_ASSERT_MES(ul <= INT_MAX && isblank(*end), false, "Invalid first response line: " + m_header_cache + ", ptr: " << ptr); 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; m_response_info.m_http_ver_lo = ul;
ptr = end + 1; ptr = end + 1;
while (isblank(*ptr)) while (isblank(*ptr))
++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); ul = strtoul(ptr, &end, 10);
CHECK_AND_ASSERT_MES(ul >= 100 && ul <= 999 && isspace(*end), false, "Invalid first response line: " + m_header_cache); 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; 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 // 4: alpha
// 8: whitespace // 8: whitespace
// 16: allowed in float but doesn't necessarily mean it's a float // 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]={ 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, 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 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 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 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 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 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, 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; std::string::const_iterator it = star_end_string;
++it; ++it;
std::string::const_iterator fi = it; std::string::const_iterator fi = it;
while (fi != buf_end && *fi != '\\' && *fi != '\"') while (fi != buf_end && ((lut[(uint8_t)*fi] & 32)) == 0)
++fi; ++fi;
val.assign(it, fi); val.assign(it, fi);
val.reserve(std::distance(star_end_string, buf_end)); 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); MTRACE("Converting std::string to uint64_t. Source: " << from);
// String only contains digits // 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); to = boost::lexical_cast<uint64_t>(from);
// MyMonero ISO 8061 timestamp (2017-05-06T16:27:06Z) // 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"))) 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 <type_traits>
#include <boost/lexical_cast.hpp> #include <boost/lexical_cast.hpp>
#include <boost/algorithm/string/predicate.hpp> #include <boost/algorithm/string/predicate.hpp>
#include "misc_log_ex.h"
#include "storages/parserse_base_utils.h"
#include "hex.h" #include "hex.h"
#include "memwipe.h" #include "memwipe.h"
#include "mlocker.h" #include "mlocker.h"
@ -126,7 +128,7 @@ DISABLE_GCC_WARNING(maybe-uninitialized)
{ {
for (char c : str_id) for (char c : str_id)
{ {
if (!std::isdigit(c)) if (!epee::misc_utils::parse::isdigit(c))
return false; return false;
} }
} }