84b3b7bb90
Batch #15641 by Yommy: 0 byte-identical, 1 confirmed by peer review. - fn_17181 IntToString: logic confirmed by peer review Peer-reviewed-by: eAthena, Tanke Accepted without human review: peers confirmed the logic ("same" ahead by at least 3, with 70% of the votes).
137 lines
3.2 KiB
C++
137 lines
3.2 KiB
C++
#include "Utility/Text/FormatString.h"
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#include "Utility/Threading/NSyncObject.h"
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#include <array>
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#include <cstdarg>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <map>
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#include <windows.h>
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// GLOBAL: gl_24365
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static char s_numberBuffer[1024];
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// OFFSET: 0x005BAEF0
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// FUNCTION: fn_03451
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int StringFormat(char* buffer, std::size_t sizeInBytes, std::size_t count, const char* format, ...) {
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int result;
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va_list args;
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va_start(args, format);
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result = _vsnprintf_s_l(buffer, sizeInBytes, count, format, nullptr, args);
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va_end(args);
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return result;
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}
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namespace {
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class ThreadSafeBuffer {
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public:
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// OFFSET: 0x00733F00
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// FUNCTION: fn_07592
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__declspec(noinline) ThreadSafeBuffer() {
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InitializeCriticalSection(&this->m_criticalSection);
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}
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// INLINED
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virtual ~ThreadSafeBuffer() {
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DeleteCriticalSection(&this->m_criticalSection);
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}
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char* GetBuffer();
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private:
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/* 0004 */ CRITICAL_SECTION m_criticalSection;
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/* 001C */ std::map<int, std::array<char, 2048>> m_buffers;
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};
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// OFFSET: 0x00734390
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// FUNCTION: fn_07595
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char* ThreadSafeBuffer::GetBuffer() {
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NSyncObject lock(&this->m_criticalSection);
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const int thread = reinterpret_cast<int>(GetCurrentThread());
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std::map<int, std::array<char, 2048>>& buffers = this->m_buffers;
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if (buffers.find(thread) == buffers.end()) {
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std::array<char, 2048> buffer{};
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buffers[thread] = buffer;
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}
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return buffers[thread].data();
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}
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}
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// OFFSET: 0x00734470
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// FUNCTION: fn_07596
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const char* FormatString(const char* format, ...) {
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static ThreadSafeBuffer s_buffer;
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va_list args;
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va_start(args, format);
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_vsnprintf(s_buffer.GetBuffer(), 2048, format, args);
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va_end(args);
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return s_buffer.GetBuffer();
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}
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// OFFSET: 0x00AF62D0
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// FUNCTION: fn_18252
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std::string FormatOwnedString(const char* format, ...) {
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char buffer[4096];
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va_list arguments;
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va_start(arguments, format);
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_vsnprintf_s(buffer, sizeof(buffer), _TRUNCATE, format, arguments);
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va_end(arguments);
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return std::string(buffer);
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}
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// OFFSET: 0x00A95590
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// FUNCTION: fn_17181
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std::string IntToString(int value, unsigned int digits) {
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if (digits == 0) {
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_itoa(value, s_numberBuffer, 10);
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return std::string(s_numberBuffer);
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}
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std::sprintf(s_numberBuffer, "%.10d", value);
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std::string text(s_numberBuffer);
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if (text.size() > digits) {
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text.erase(text.begin(), text.end() - digits);
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}
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return text;
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}
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// OFFSET: 0x00A95790
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// FUNCTION: fn_17182
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std::string IntToSignedString(int value, bool grouped, bool showPlus) {
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if (!grouped) {
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return IntToString(value, 0);
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}
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const unsigned int bits = static_cast<unsigned int>(value);
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const unsigned int magnitude = value < 0 ? 0u - bits : bits;
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std::string digits = IntToString(static_cast<int>(magnitude), 0);
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std::string text;
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const bool negative = value < 0;
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for (std::size_t i = 0; i < digits.size(); ++i) {
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if ((digits.size() - i) % 3 == 0) {
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text += std::string(",");
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}
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text += digits.at(i);
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}
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if (text.at(0) == ',') {
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text.erase(0, 1);
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}
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if (negative) {
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text.insert(text.begin(), '-');
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} else if (showPlus && value != 0) {
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text.insert(text.begin(), '+');
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}
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return text;
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}
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