73 lines
1.6 KiB
C++
73 lines
1.6 KiB
C++
#include "Utility/FormatString.h"
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#include "Utility/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 <cstring>
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#include <map>
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#include <windows.h>
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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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va_list args;
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va_start(args, format);
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const int result = _vsnprintf_s(buffer, sizeInBytes, count, format, args);
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va_end(args);
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if (result < 0) {
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return -1;
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}
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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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ThreadSafeBuffer() {
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InitializeCriticalSection(&this->m_criticalSection);
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}
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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<HANDLE, 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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HANDLE thread = GetCurrentThread();
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auto it = this->m_buffers.find(thread);
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if (it == this->m_buffers.end()) {
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it = this->m_buffers.emplace(thread, std::array<char, 2048>{}).first;
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}
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return it->second.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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char* buffer = s_buffer.GetBuffer();
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va_list args;
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va_start(args, format);
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std::vsnprintf(buffer, 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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