From ceb0172b1e95c821e4b7dfb2124d5689a4143f1e Mon Sep 17 00:00:00 2001
From: DH <dh.rpcs3@gmail.com>
Date: Sat, 31 Aug 2024 23:23:11 +0300
Subject: [PATCH] vfs: add exists test function

---
 rpcsx-os/vfs.cpp | 15 ++++++++++++++-
 rpcsx-os/vfs.hpp |  1 +
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/rpcsx-os/vfs.cpp b/rpcsx-os/vfs.cpp
index eba498aa3..083a12d51 100644
--- a/rpcsx-os/vfs.cpp
+++ b/rpcsx-os/vfs.cpp
@@ -6,7 +6,6 @@
 #include "orbis/error/SysResult.hpp"
 #include <filesystem>
 #include <map>
-#include <optional>
 #include <string_view>
 
 
@@ -183,6 +182,20 @@ orbis::SysResult rx::vfs::open(std::string_view path, int flags, int mode,
   return device->open(file, devPath.c_str(), flags, mode, thread);
 }
 
+bool rx::vfs::exists(std::string_view path, orbis::Thread *thread) {
+  auto [device, devPath] = get(path);
+  if (device == nullptr) {
+    return false;
+  }
+
+  orbis::Ref<orbis::File> file;
+  if (device->open(&file, devPath.c_str(), 0, 0, thread) !=
+      orbis::ErrorCode{}) {
+    return false;
+  }
+  return true;
+}
+
 orbis::SysResult rx::vfs::mkdir(std::string_view path, int mode,
                                 orbis::Thread *thread) {
   auto [device, devPath] = get(path);
diff --git a/rpcsx-os/vfs.hpp b/rpcsx-os/vfs.hpp
index 2edb29e2d..8884d9399 100644
--- a/rpcsx-os/vfs.hpp
+++ b/rpcsx-os/vfs.hpp
@@ -17,6 +17,7 @@ get(const std::filesystem::path &guestPath);
 orbis::SysResult mount(const std::filesystem::path &guestPath, IoDevice *dev);
 orbis::SysResult open(std::string_view path, int flags, int mode,
                       orbis::Ref<orbis::File> *file, orbis::Thread *thread);
+bool exists(std::string_view path, orbis::Thread *thread);
 orbis::SysResult mkdir(std::string_view path, int mode, orbis::Thread *thread);
 orbis::SysResult rmdir(std::string_view path, orbis::Thread *thread);
 orbis::SysResult rename(std::string_view from, std::string_view to,