From 84a8523568b926f53ebd0689491e0d5380c31083 Mon Sep 17 00:00:00 2001
From: DH <dh.rpcs3@gmail.com>
Date: Fri, 10 Nov 2023 21:01:55 +0300
Subject: [PATCH] [orbis-kernel] devfs: implement device as directory

---
 rpcsx-os/vfs.cpp | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/rpcsx-os/vfs.cpp b/rpcsx-os/vfs.cpp
index c419e6102..c84ac3395 100644
--- a/rpcsx-os/vfs.cpp
+++ b/rpcsx-os/vfs.cpp
@@ -10,13 +10,23 @@
 #include <string_view>
 
 struct DevFs : IoDevice {
-  std::map<std::string, orbis::Ref<IoDevice>> devices;
+  std::map<std::string, orbis::Ref<IoDevice>, std::less<>> devices;
 
   orbis::ErrorCode open(orbis::Ref<orbis::File> *file, const char *path,
                         std::uint32_t flags, std::uint32_t mode,
                         orbis::Thread *thread) override {
-    if (auto it = devices.find(path); it != devices.end()) {
-      return it->second->open(file, path, flags, mode, thread);
+    std::string_view devPath = path;
+    if (auto pos = devPath.find('/'); pos != std::string_view::npos) {
+      auto deviceName = devPath.substr(0, pos);
+      devPath.remove_prefix(pos + 1);
+
+      if (auto it = devices.find(deviceName); it != devices.end()) {
+        return it->second->open(file, std::string(devPath).c_str(), flags, mode, thread);
+      }
+    } else {
+      if (auto it = devices.find(devPath); it != devices.end()) {
+        return it->second->open(file, "", flags, mode, thread);
+      }
     }
 
     std::fprintf(stderr, "device %s not exists\n", path);