Mutants.

src/xenia/kernel/objects/sources.gypi

@@ -7,6 +7,8 @@
     'xfile.h',
     'xmodule.cc',
     'xmodule.h',
+    'xmutant.cc',
+    'xmutant.h',
     'xnotify_listener.cc',
     'xnotify_listener.h',
     'xsemaphore.cc',

src/xenia/kernel/objects/xmutant.cc

@@ -0,0 +1,51 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#include <xenia/kernel/objects/xmutant.h>
+
+
+using namespace xe;
+using namespace xe::kernel;
+
+
+XMutant::XMutant(KernelState* kernel_state) :
+    XObject(kernel_state, kTypeMutant),
+    handle_(NULL) {
+}
+
+XMutant::~XMutant() {
+  if (handle_) {
+    CloseHandle(handle_);
+  }
+}
+
+void XMutant::Initialize(bool initial_owner) {
+  XEASSERTNULL(handle_);
+
+  handle_ = CreateMutex(NULL, initial_owner ? TRUE : FALSE, NULL);
+}
+
+void XMutant::InitializeNative(void* native_ptr, DISPATCH_HEADER& header) {
+  XEASSERTNULL(handle_);
+
+  // Haven't seen this yet, but it's possible.
+  XEASSERTALWAYS();
+}
+
+X_STATUS XMutant::ReleaseMutant(
+    uint32_t priority_increment, bool abandon, bool wait) {
+  // TODO(benvanik): abandoning.
+  XEASSERTFALSE(abandon);
+  BOOL result = ReleaseMutex(handle_);
+  if (result) {
+    return X_STATUS_SUCCESS;
+  } else {
+    return X_STATUS_MUTANT_NOT_OWNED;
+  }
+}

src/xenia/kernel/objects/xmutant.h

@@ -0,0 +1,43 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_KERNEL_XBOXKRNL_XMUTANT_H_
+#define XENIA_KERNEL_XBOXKRNL_XMUTANT_H_
+
+#include <xenia/kernel/xobject.h>
+
+#include <xenia/xbox.h>
+
+
+namespace xe {
+namespace kernel {
+
+
+class XMutant : public XObject {
+public:
+  XMutant(KernelState* kernel_state);
+  virtual ~XMutant();
+
+  void Initialize(bool initial_owner);
+  void InitializeNative(void* native_ptr, DISPATCH_HEADER& header);
+
+  X_STATUS ReleaseMutant(uint32_t priority_increment, bool abandon, bool wait);
+
+  virtual void* GetWaitHandle() { return handle_; }
+
+private:
+  HANDLE handle_;
+};
+
+
+}  // namespace kernel
+}  // namespace xe
+
+
+#endif  // XENIA_KERNEL_XBOXKRNL_XMUTANT_H_