From 0400eba274dd0a6b38220a0b3665b582b83c17af Mon Sep 17 00:00:00 2001
From: emoose <abc@cock.li>
Date: Mon, 28 Dec 2020 07:30:29 +0000
Subject: [PATCH] [Kernel] XFile::Read: add notify_completion param to allow
 disabling XIOCompletion

---
 src/xenia/kernel/xfile.cc | 21 ++++++++++++---------
 src/xenia/kernel/xfile.h  |  2 +-
 2 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/src/xenia/kernel/xfile.cc b/src/xenia/kernel/xfile.cc
index dc4553505..24ded0619 100644
--- a/src/xenia/kernel/xfile.cc
+++ b/src/xenia/kernel/xfile.cc
@@ -93,7 +93,7 @@ X_STATUS XFile::QueryDirectory(X_FILE_DIRECTORY_INFORMATION* out_info,
 
 X_STATUS XFile::Read(uint32_t buffer_guest_address, uint32_t buffer_length,
                      uint64_t byte_offset, uint32_t* out_bytes_read,
-                     uint32_t apc_context) {
+                     uint32_t apc_context, bool notify_completion) {
   if (byte_offset == uint64_t(-1)) {
     // Read from current position.
     byte_offset = position_;
@@ -160,18 +160,21 @@ X_STATUS XFile::Read(uint32_t buffer_guest_address, uint32_t buffer_length,
     }
   }
 
-  XIOCompletion::IONotification notify;
-  notify.apc_context = apc_context;
-  notify.num_bytes = uint32_t(bytes_read);
-  notify.status = result;
-
-  NotifyIOCompletionPorts(notify);
-
   if (out_bytes_read) {
     *out_bytes_read = uint32_t(bytes_read);
   }
 
-  async_event_->Set();
+  if (notify_completion) {
+    XIOCompletion::IONotification notify;
+    notify.apc_context = apc_context;
+    notify.num_bytes = uint32_t(bytes_read);
+    notify.status = result;
+
+    NotifyIOCompletionPorts(notify);
+
+    async_event_->Set();
+  }
+
   return result;
 }
 
diff --git a/src/xenia/kernel/xfile.h b/src/xenia/kernel/xfile.h
index b432b69d5..a63a4e6cf 100644
--- a/src/xenia/kernel/xfile.h
+++ b/src/xenia/kernel/xfile.h
@@ -99,7 +99,7 @@ class XFile : public XObject {
   // critical region).
   X_STATUS Read(uint32_t buffer_guess_address, uint32_t buffer_length,
                 uint64_t byte_offset, uint32_t* out_bytes_read,
-                uint32_t apc_context);
+                uint32_t apc_context, bool notify_completion = true);
 
   X_STATUS Write(uint32_t buffer_guess_address, uint32_t buffer_length,
                  uint64_t byte_offset, uint32_t* out_bytes_written,