More Fixes for Separate Update (#1487)

* handle getdents + fix condition + add info to description

* fix not handling dents errors

* to not overwrite it, only gather separate update entries when normal folder is done

* fix always setting entries to 0 and guest name including "UPDATE"

* reset indexes on completion

* don't use concat, fixes long standing bug

* make sce_module module loading take both paths into account

src/core/file_sys/fs.cpp

@@ -199,4 +199,14 @@ void HandleTable::CreateStdHandles() {
     setup("/dev/stderr", new Devices::Logger("stderr", true));  // stderr
 }
 
+int HandleTable::GetFileDescriptor(File* file) {
+    std::scoped_lock lock{m_mutex};
+    auto it = std::find(m_files.begin(), m_files.end(), file);
+
+    if (it != m_files.end()) {
+        return std::distance(m_files.begin(), it);
+    }
+    return 0;
+}
+
 } // namespace Core::FileSys

src/core/file_sys/fs.h

@@ -9,6 +9,7 @@
 #include <vector>
 #include <tsl/robin_map.h>
 #include "common/io_file.h"
+#include "common/logging/formatter.h"
 #include "core/devices/base_device.h"
 
 namespace Core::FileSys {
@@ -37,6 +38,14 @@ public:
     std::filesystem::path GetHostPath(std::string_view guest_directory,
                                       bool* is_read_only = nullptr);
 
+    const MntPair* GetMountFromHostPath(const std::string& host_path) {
+        std::scoped_lock lock{m_mutex};
+        const auto it = std::ranges::find_if(m_mnt_pairs, [&](const MntPair& mount) {
+            return host_path.starts_with(std::string{fmt::UTF(mount.host_path.u8string()).data});
+        });
+        return it == m_mnt_pairs.end() ? nullptr : &*it;
+    }
+
     const MntPair* GetMount(const std::string& guest_path) {
         std::scoped_lock lock{m_mutex};
         const auto it = std::ranges::find_if(m_mnt_pairs, [&](const auto& mount) {
@@ -86,6 +95,7 @@ public:
     void DeleteHandle(int d);
     File* GetFile(int d);
     File* GetFile(const std::filesystem::path& host_name);
+    int GetFileDescriptor(File* file);
 
     void CreateStdHandles();