1 files changed, 51 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/composite/synchronization/nativecriticalsection/mtx_critsect.h b/src/pal/tests/palsuite/composite/synchronization/nativecriticalsection/mtx_critsect.h
new file mode 100644
index 0000000000..bc44ad8ecd
--- /dev/null
+++ b/src/pal/tests/palsuite/composite/synchronization/nativecriticalsection/mtx_critsect.h
@@ -0,0 +1,51 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+#include <pthread.h>
+
+typedef void VOID;
+typedef unsigned long DWORD;
+typedef long LONG;
+typedef unsigned long ULONG;
+typedef void* HANDLE;
+typedef unsigned long ULONG_PTR;
+
+#define FALSE 0
+#define TRUE 1
+
+#define CSBIT_CS_IS_LOCKED  1
+#define CSBIT_NEW_WAITER    2
+
+typedef enum CsInitState { CS_NOT_INIZIALIZED, CS_INITIALIZED, CS_FULLY_INITIALIZED } CsInitState;
+typedef enum _CsWaiterReturnState { CS_WAITER_WOKEN_UP, CS_WAITER_DIDNT_WAIT } CsWaiterReturnState;
+
+typedef struct _CRITICAL_SECTION_DEBUG_INFO {
+    LONG volatile ContentionCount;
+    LONG volatile InternalContentionCount;
+    ULONG volatile AcquireCount;
+    ULONG volatile EnterCount;
+} CRITICAL_SECTION_DEBUG_INFO, *PCRITICAL_SECTION_DEBUG_INFO;
+
+typedef struct _CRITICAL_SECTION_NATIVE_DATA {
+    pthread_mutex_t Mutex;
+} CRITICAL_SECTION_NATIVE_DATA, *PCRITICAL_SECTION_NATIVE_DATA;
+
+typedef struct _CRITICAL_SECTION {
+	
+    CsInitState InitCount;
+    PCRITICAL_SECTION_DEBUG_INFO DebugInfo;
+    LONG LockCount;
+    LONG RecursionCount;
+    HANDLE OwningThread;
+    HANDLE LockSemaphore;
+    ULONG_PTR SpinCount;
+    CRITICAL_SECTION_NATIVE_DATA NativeData;
+    
+} CRITICAL_SECTION, *PCRITICAL_SECTION, *LPCRITICAL_SECTION;
+
+int MTXInitializeCriticalSection(LPCRITICAL_SECTION lpCriticalSection);
+int MTXDeleteCriticalSection(LPCRITICAL_SECTION lpCriticalSection);
+int MTXEnterCriticalSection(LPCRITICAL_SECTION lpCriticalSection);
+int MTXLeaveCriticalSection(LPCRITICAL_SECTION lpCriticalSection);
+