From 224be37840a94b05079fc5e39b2d25352d4271a9 Mon Sep 17 00:00:00 2001
From: wwylele <wwylele@gmail.com>
Date: Mon, 27 Jun 2016 20:42:42 +0300
Subject: [PATCH] Memory: add ReadCString function

---
 src/core/memory.cpp | 14 ++++++++++++++
 src/core/memory.h   |  3 +++
 2 files changed, 17 insertions(+)

diff --git a/src/core/memory.cpp b/src/core/memory.cpp
index 8c9e5d46d..9aa8c4e5a 100644
--- a/src/core/memory.cpp
+++ b/src/core/memory.cpp
@@ -280,6 +280,20 @@ u8* GetPointer(const VAddr vaddr) {
     return nullptr;
 }
 
+std::string ReadCString(VAddr vaddr, std::size_t max_length) {
+    std::string string;
+    string.reserve(max_length);
+    for (std::size_t i = 0; i < max_length; ++i) {
+        char c = Read8(vaddr);
+        if (c == '\0')
+            break;
+        string.push_back(c);
+        ++vaddr;
+    }
+    string.shrink_to_fit();
+    return string;
+}
+
 u8* GetPhysicalPointer(PAddr address) {
     // TODO(Subv): This call should not go through the application's memory mapping.
     return GetPointer(PhysicalToVirtualAddress(address));
diff --git a/src/core/memory.h b/src/core/memory.h
index ae5588dee..cad845385 100644
--- a/src/core/memory.h
+++ b/src/core/memory.h
@@ -5,6 +5,7 @@
 #pragma once
 
 #include <cstddef>
+#include <string>
 
 #include "common/common_types.h"
 
@@ -130,6 +131,8 @@ void CopyBlock(VAddr dest_addr, VAddr src_addr, size_t size);
 
 u8* GetPointer(VAddr virtual_address);
 
+std::string ReadCString(VAddr virtual_address, std::size_t max_length);
+
 /**
 * Converts a virtual address inside a region with 1:1 mapping to physical memory to a physical
 * address. This should be used by services to translate addresses for use by the hardware.