kernel32: Added InitOnceInitialize() implementation.

dlls/kernel32/kernel32.spec

@@ -747,6 +747,7 @@
 @ stdcall InitializeCriticalSectionAndSpinCount(ptr long)
 @ stdcall InitializeCriticalSectionEx(ptr long long)
 @ stdcall InitializeSListHead(ptr) ntdll.RtlInitializeSListHead
+@ stdcall InitOnceInitialize(ptr) ntdll.RtlRunOnceInitialize
 @ stdcall -arch=i386 InterlockedCompareExchange (ptr long long)
 @ stdcall -arch=i386 -ret64 InterlockedCompareExchange64(ptr int64 int64) ntdll.RtlInterlockedCompareExchange64
 @ stdcall -arch=i386 InterlockedDecrement(ptr)

dlls/kernel32/tests/sync.c

@@ -37,6 +37,7 @@ static BOOL   (WINAPI *pDeleteTimerQueueTimer)(HANDLE, HANDLE, HANDLE);
 static HANDLE (WINAPI *pOpenWaitableTimerA)(DWORD,BOOL,LPCSTR);
 static HANDLE (WINAPI *pCreateMemoryResourceNotification)(MEMORY_RESOURCE_NOTIFICATION_TYPE);
 static BOOL   (WINAPI *pQueryMemoryResourceNotification)(HANDLE, PBOOL);
+static VOID   (WINAPI *pInitOnceInitialize)(PINIT_ONCE);
 
 static void test_signalandwait(void)
 {
@@ -1135,6 +1136,21 @@ static void test_WaitForMultipleObjects(void)
         if (maxevents[i]) CloseHandle(maxevents[i]);
 }
 
+static void test_initonce(void)
+{
+    INIT_ONCE initonce;
+
+    if (!pInitOnceInitialize)
+    {
+        win_skip("one-time initialization API not supported\n");
+        return;
+    }
+
+    initonce.Ptr = (void*)0xdeadbeef;
+    pInitOnceInitialize(&initonce);
+    ok(initonce.Ptr == NULL, "got %p\n", initonce.Ptr);
+}
+
 START_TEST(sync)
 {
     HMODULE hdll = GetModuleHandle("kernel32");
@@ -1147,6 +1163,7 @@ START_TEST(sync)
     pOpenWaitableTimerA = (void*)GetProcAddress(hdll, "OpenWaitableTimerA");
     pCreateMemoryResourceNotification = (void *)GetProcAddress(hdll, "CreateMemoryResourceNotification");
     pQueryMemoryResourceNotification = (void *)GetProcAddress(hdll, "QueryMemoryResourceNotification");
+    pInitOnceInitialize = (void *)GetProcAddress(hdll, "InitOnceInitialize");
 
     test_signalandwait();
     test_mutex();
@@ -1158,4 +1175,5 @@ START_TEST(sync)
     test_timer_queue();
     test_WaitForSingleObject();
     test_WaitForMultipleObjects();
+    test_initonce();
 }

dlls/ntdll/ntdll.spec

@@ -815,6 +815,7 @@
 @ stub RtlRevertMemoryStream
 @ stub RtlRunDecodeUnicodeString
 @ stub RtlRunEncodeUnicodeString
+@ stdcall RtlRunOnceInitialize(ptr)
 @ stdcall RtlSecondsSince1970ToTime(long ptr)
 @ stdcall RtlSecondsSince1980ToTime(long ptr)
 # @ stub RtlSeekMemoryStream

dlls/ntdll/sync.c

@@ -1463,3 +1463,8 @@ NTSTATUS NTDLL_AddCompletion( HANDLE hFile, ULONG_PTR CompletionValue,
     SERVER_END_REQ;
     return status;
 }
+
+VOID NTAPI RtlRunOnceInitialize(PRTL_RUN_ONCE initonce)
+{
+    initonce->Ptr = NULL;
+}

include/winbase.h

@@ -1316,6 +1316,12 @@ typedef struct _WIN32_STREAM_ID {
 #define LOGON_NETCREDENTIALS_ONLY   0x00000002
 #define LOGON_ZERO_PASSWORD_BUFFER  0x80000000
 
+/* one-time initialisation API */
+typedef RTL_RUN_ONCE  INIT_ONCE;
+typedef PRTL_RUN_ONCE PINIT_ONCE;
+typedef PRTL_RUN_ONCE LPINIT_ONCE;
+#define INIT_ONCE_STATIC_INIT RTL_RUN_ONCE_INIT
+
 WINBASEAPI BOOL        WINAPI ActivateActCtx(HANDLE,ULONG_PTR *);
 WINADVAPI  BOOL        WINAPI AddAccessAllowedAce(PACL,DWORD,DWORD,PSID);
 WINADVAPI  BOOL        WINAPI AddAccessAllowedAceEx(PACL,DWORD,DWORD,DWORD,PSID);
@@ -1876,6 +1882,7 @@ WINADVAPI  BOOL        WINAPI InitializeSecurityDescriptor(PSECURITY_DESCRIPTOR,
 WINADVAPI  BOOL        WINAPI InitializeSid(PSID,PSID_IDENTIFIER_AUTHORITY,BYTE);
 WINBASEAPI VOID        WINAPI InitializeSListHead(PSLIST_HEADER);
 WINBASEAPI VOID        WINAPI InitializeSRWLock(PSRWLOCK);
+WINBASEAPI VOID        WINAPI InitOnceInitialize(PINIT_ONCE);
 WINBASEAPI PSLIST_ENTRY WINAPI InterlockedFlushSList(PSLIST_HEADER);
 WINBASEAPI PSLIST_ENTRY WINAPI InterlockedPopEntrySList(PSLIST_HEADER);
 WINBASEAPI PSLIST_ENTRY WINAPI InterlockedPushEntrySList(PSLIST_HEADER, PSLIST_ENTRY);

include/winnt.h

@@ -5087,6 +5087,13 @@ typedef struct _RTL_SRWLOCK {
 typedef VOID (NTAPI * WAITORTIMERCALLBACKFUNC) (PVOID, BOOLEAN );
 typedef VOID (NTAPI * PFLS_CALLBACK_FUNCTION) ( PVOID );
 
+#define RTL_RUN_ONCE_INIT {0}
+typedef union _RTL_RUN_ONCE {
+    PVOID Ptr;
+} RTL_RUN_ONCE, *PRTL_RUN_ONCE;
+
+NTSYSAPI VOID NTAPI RtlRunOnceInitialize(PRTL_RUN_ONCE);
+
 #include <pshpack8.h>
 typedef struct _IO_COUNTERS {
     ULONGLONG DECLSPEC_ALIGN(8) ReadOperationCount;