win: don't fetch function pointers to SRWLock APIs

They're no longer needed, since the Windows-native SRWLock functions are
no longer used.

PR-URL: libuv#525
Reviewed-By: Saúl Ibarra Corretgé <saghul@gmail.com>

src/win/thread.c

@@ -27,28 +27,8 @@
 #include "internal.h"
 
 
-#define HAVE_SRWLOCK_API() (pTryAcquireSRWLockShared != NULL)
 #define HAVE_CONDVAR_API() (pInitializeConditionVariable != NULL)
 
-static int uv__rwlock_srwlock_init(uv_rwlock_t* rwlock);
-static void uv__rwlock_srwlock_destroy(uv_rwlock_t* rwlock);
-static void uv__rwlock_srwlock_rdlock(uv_rwlock_t* rwlock);
-static int uv__rwlock_srwlock_tryrdlock(uv_rwlock_t* rwlock);
-static void uv__rwlock_srwlock_rdunlock(uv_rwlock_t* rwlock);
-static void uv__rwlock_srwlock_wrlock(uv_rwlock_t* rwlock);
-static int uv__rwlock_srwlock_trywrlock(uv_rwlock_t* rwlock);
-static void uv__rwlock_srwlock_wrunlock(uv_rwlock_t* rwlock);
-
-static int uv__rwlock_fallback_init(uv_rwlock_t* rwlock);
-static void uv__rwlock_fallback_destroy(uv_rwlock_t* rwlock);
-static void uv__rwlock_fallback_rdlock(uv_rwlock_t* rwlock);
-static int uv__rwlock_fallback_tryrdlock(uv_rwlock_t* rwlock);
-static void uv__rwlock_fallback_rdunlock(uv_rwlock_t* rwlock);
-static void uv__rwlock_fallback_wrlock(uv_rwlock_t* rwlock);
-static int uv__rwlock_fallback_trywrlock(uv_rwlock_t* rwlock);
-static void uv__rwlock_fallback_wrunlock(uv_rwlock_t* rwlock);
-
-
 static int uv_cond_fallback_init(uv_cond_t* cond);
 static void uv_cond_fallback_destroy(uv_cond_t* cond);
 static void uv_cond_fallback_signal(uv_cond_t* cond);

src/win/winapi.c

@@ -40,13 +40,6 @@ sGetQueuedCompletionStatusEx pGetQueuedCompletionStatusEx;
 sSetFileCompletionNotificationModes pSetFileCompletionNotificationModes;
 sCreateSymbolicLinkW pCreateSymbolicLinkW;
 sCancelIoEx pCancelIoEx;
-sInitializeSRWLock pInitializeSRWLock;
-sAcquireSRWLockShared pAcquireSRWLockShared;
-sAcquireSRWLockExclusive pAcquireSRWLockExclusive;
-sTryAcquireSRWLockShared pTryAcquireSRWLockShared;
-sTryAcquireSRWLockExclusive pTryAcquireSRWLockExclusive;
-sReleaseSRWLockShared pReleaseSRWLockShared;
-sReleaseSRWLockExclusive pReleaseSRWLockExclusive;
 sInitializeConditionVariable pInitializeConditionVariable;
 sSleepConditionVariableCS pSleepConditionVariableCS;
 sSleepConditionVariableSRW pSleepConditionVariableSRW;
@@ -129,27 +122,6 @@ void uv_winapi_init() {
   pCancelIoEx = (sCancelIoEx)
     GetProcAddress(kernel32_module, "CancelIoEx");
 
-  pInitializeSRWLock = (sInitializeSRWLock)
-    GetProcAddress(kernel32_module, "InitializeSRWLock");
-
-  pAcquireSRWLockShared = (sAcquireSRWLockShared)
-    GetProcAddress(kernel32_module, "AcquireSRWLockShared");
-
-  pAcquireSRWLockExclusive = (sAcquireSRWLockExclusive)
-    GetProcAddress(kernel32_module, "AcquireSRWLockExclusive");
-
-  pTryAcquireSRWLockShared = (sTryAcquireSRWLockShared)
-    GetProcAddress(kernel32_module, "TryAcquireSRWLockShared");
-
-  pTryAcquireSRWLockExclusive = (sTryAcquireSRWLockExclusive)
-    GetProcAddress(kernel32_module, "TryAcquireSRWLockExclusive");
-
-  pReleaseSRWLockShared = (sReleaseSRWLockShared)
-    GetProcAddress(kernel32_module, "ReleaseSRWLockShared");
-
-  pReleaseSRWLockExclusive = (sReleaseSRWLockExclusive)
-    GetProcAddress(kernel32_module, "ReleaseSRWLockExclusive");
-
   pInitializeConditionVariable = (sInitializeConditionVariable)
     GetProcAddress(kernel32_module, "InitializeConditionVariable");
 

src/win/winapi.h

@@ -4655,27 +4655,6 @@ typedef BOOL (WINAPI* sCancelIoEx)
              (HANDLE hFile,
               LPOVERLAPPED lpOverlapped);
 
-typedef VOID (WINAPI* sInitializeSRWLock)
-             (PSRWLOCK SRWLock);
-
-typedef VOID (WINAPI* sAcquireSRWLockShared)
-             (PSRWLOCK SRWLock);
-
-typedef VOID (WINAPI* sAcquireSRWLockExclusive)
-             (PSRWLOCK SRWLock);
-
-typedef BOOL (WINAPI* sTryAcquireSRWLockShared)
-             (PSRWLOCK SRWLock);
-
-typedef BOOL (WINAPI* sTryAcquireSRWLockExclusive)
-             (PSRWLOCK SRWLock);
-
-typedef VOID (WINAPI* sReleaseSRWLockShared)
-             (PSRWLOCK SRWLock);
-
-typedef VOID (WINAPI* sReleaseSRWLockExclusive)
-             (PSRWLOCK SRWLock);
-
 typedef VOID (WINAPI* sInitializeConditionVariable)
              (PCONDITION_VARIABLE ConditionVariable);
 
@@ -4714,13 +4693,6 @@ extern sGetQueuedCompletionStatusEx pGetQueuedCompletionStatusEx;
 extern sSetFileCompletionNotificationModes pSetFileCompletionNotificationModes;
 extern sCreateSymbolicLinkW pCreateSymbolicLinkW;
 extern sCancelIoEx pCancelIoEx;
-extern sInitializeSRWLock pInitializeSRWLock;
-extern sAcquireSRWLockShared pAcquireSRWLockShared;
-extern sAcquireSRWLockExclusive pAcquireSRWLockExclusive;
-extern sTryAcquireSRWLockShared pTryAcquireSRWLockShared;
-extern sTryAcquireSRWLockExclusive pTryAcquireSRWLockExclusive;
-extern sReleaseSRWLockShared pReleaseSRWLockShared;
-extern sReleaseSRWLockExclusive pReleaseSRWLockExclusive;
 extern sInitializeConditionVariable pInitializeConditionVariable;
 extern sSleepConditionVariableCS pSleepConditionVariableCS;
 extern sSleepConditionVariableSRW pSleepConditionVariableSRW;