improved StringUtil algo + some PhysicalMemory work

CMakeLists.txt

@@ -34,7 +34,7 @@ add_executable(shadps4
     src/Core/Memory.h
     src/Core/PS4/Linker.cpp
     src/Core/PS4/Linker.h
-     "src/Util/Singleton.h" "src/Util/Disassembler.cpp" "src/Util/Disassembler.h" "src/Util/StringUtil.h" "src/Core/PS4/Util/aerolib.h" "src/Core/PS4/Loader/SymbolsResolver.h" "src/Core/PS4/Loader/SymbolsResolver.cpp" "src/Core/PS4/HLE/Libs.cpp" "src/Core/PS4/HLE/Libs.h" "src/Core/PS4/HLE/LibC.cpp" "src/Core/PS4/HLE/LibC.h" "src/Lib/Timer.cpp" "src/Lib/Timer.h" "src/Core/PS4/HLE/LibKernel.cpp" "src/Core/PS4/HLE/LibKernel.h" "src/Core/PS4/HLE/LibSceVideoOut.cpp" "src/Core/PS4/HLE/LibSceVideoOut.h" "src/Core/PS4/HLE/LibSceGnmDriver.cpp" "src/Core/PS4/HLE/LibSceGnmDriver.h" "src/Core/PS4/HLE/Kernel/ThreadManagement.cpp" "src/Core/PS4/HLE/Kernel/ThreadManagement.h" "src/Core/PS4/HLE/ErrorCodes.h" "src/Debug.h" "src/Core/PS4/HLE/Kernel/MemoryManagement.cpp" "src/Core/PS4/HLE/Kernel/MemoryManagement.h" "src/Core/PS4/HLE/Kernel/MemMngCodes.h")
+     "src/Util/Singleton.h" "src/Util/Disassembler.cpp" "src/Util/Disassembler.h" "src/Util/StringUtil.h" "src/Core/PS4/Util/aerolib.h" "src/Core/PS4/Loader/SymbolsResolver.h" "src/Core/PS4/Loader/SymbolsResolver.cpp" "src/Core/PS4/HLE/Libs.cpp" "src/Core/PS4/HLE/Libs.h" "src/Core/PS4/HLE/LibC.cpp" "src/Core/PS4/HLE/LibC.h" "src/Lib/Timer.cpp" "src/Lib/Timer.h" "src/Core/PS4/HLE/LibKernel.cpp" "src/Core/PS4/HLE/LibKernel.h" "src/Core/PS4/HLE/LibSceVideoOut.cpp" "src/Core/PS4/HLE/LibSceVideoOut.h" "src/Core/PS4/HLE/LibSceGnmDriver.cpp" "src/Core/PS4/HLE/LibSceGnmDriver.h" "src/Core/PS4/HLE/Kernel/ThreadManagement.cpp" "src/Core/PS4/HLE/Kernel/ThreadManagement.h" "src/Core/PS4/HLE/ErrorCodes.h" "src/Debug.h" "src/Core/PS4/HLE/Kernel/MemoryManagement.cpp" "src/Core/PS4/HLE/Kernel/MemoryManagement.h" "src/Core/PS4/HLE/Kernel/MemMngCodes.h" "src/Core/PS4/HLE/Kernel/PhysicalMemory.cpp" "src/Util/StringUtil.cpp")
 
 find_package(OpenGL REQUIRED)
 target_link_libraries(shadps4 PUBLIC fmt spdlog IMGUI SDL3-shared ${OPENGL_LIBRARY})

src/Core/PS4/HLE/Kernel/PhysicalMemory.h

@@ -0,0 +1,15 @@
+#pragma once
+
+namespace HLE::Libs::LibKernel::MemoryManagement {
+
+class PysicalMemory {
+    struct AllocatedBlock {
+        u64 start_addr;
+        u64 size;
+    };
+
+  private:
+    std::vector<AllocatedBlock> m_allocatedBlocks;
+};
+
+}  // namespace HLE::Libs::LibKernel::MemoryManagement

src/Core/PS4/Linker.cpp

@@ -427,7 +427,7 @@ void Linker::LoadSymbols(Module* m)
 		sym++)
 	{
 		std::string id = std::string(m->dynamic_info->str_table + sym->st_name);
-		auto ids = StringUtil::split(id, '#');
+        auto ids = StringUtil::split_string(id, '#');
 		if (ids.size() == 3)//symbols are 3 parts name , library , module 
 		{
 			const auto* library = FindLibrary(*m, ids.at(1));
@@ -590,7 +590,7 @@ void Linker::Relocate(Module* m)
 
 
 void Linker::Resolve(const std::string& name, int Symtype, Module* m, SymbolRecord* return_info) { 
-	auto ids = StringUtil::split(name, '#');
+	auto ids = StringUtil::split_string(name, '#');
 
 	if (ids.size() == 3)  // symbols are 3 parts name , library , module
     {

src/Util/StringUtil.cpp

@@ -0,0 +1,23 @@
+#include "StringUtil.h"
+#include <algorithm>
+#include <sstream>
+#include <string>
+
+namespace StringUtil {
+
+std::vector<std::string> split_string(const std::string &str, char delimiter) {
+    std::stringstream str_stream(str);
+    std::string segment;
+    std::vector<std::string> seglist;
+
+    const size_t num_segments = std::count_if(str.begin(), str.end(), [&](char c) { return c == delimiter; }) + (str.empty() ? 1 : 0);
+
+    seglist.reserve(num_segments);
+
+    while (std::getline(str_stream, segment, delimiter)) {
+        seglist.push_back(segment);
+    }
+    return seglist;
+}
+
+}  // namespace StringUtil

src/Util/StringUtil.h

@@ -4,23 +4,6 @@
 
 namespace StringUtil {
 
-	static std::vector<std::string> split(const std::string& s, char seperator)
+	std::vector<std::string> split_string(const std::string& str, char delimiter);
-	{
-		std::vector<std::string> output;
 
-		std::string::size_type prev_pos = 0, pos = 0;
-
-		while ((pos = s.find(seperator, pos)) != std::string::npos)
-		{
-			std::string substring(s.substr(prev_pos, pos - prev_pos));
-
-			output.push_back(substring);
-
-			prev_pos = ++pos;
-		}
-
-		output.push_back(s.substr(prev_pos, pos - prev_pos)); // Last word
-
-		return output;
-	}
 }