Changeset 785 in dev for branches/egtra/ab5.0/abdev/OldWindowsHelperImpl.cpp

Timestamp:

Jan 30, 2011, 12:08:38 AM (14 years ago)

Author:

イグトランス (egtra)

Message:

旧Windows対応箇所で、毎回の関数呼出を行なわないようにした。タイミングによって、GetModuleHandle内のHeap関数呼出が落ちる現象に遭遇したため。

File:

• branches/egtra/ab5.0/abdev/OldWindowsHelperImpl.cpp (modified) (10 diffs)

branches/egtra/ab5.0/abdev/OldWindowsHelperImpl.cpp

@@ -1 +1 @@
 #include "stdafx.h"
 
-static OSVERSIONINFO GetVersionEx2()
+#define GET_PROC_ADDRESS(hmod, functionName) reinterpret_cast<decltype(functionName)*>(GetProcAddress((hmod), #functionName))
+
+namespace
+{
+
+OSVERSIONINFO GetVersionEx2()
 {
     OSVERSIONINFO vi = {sizeof vi};
@@ -10 +15 @@
 static OSVERSIONINFO const vi = GetVersionEx2();
 
-#define KERNEL32 (GetModuleHandle(TEXT("kernel32")))
+HMODULE GetKernelModule()
+{
+    static HMODULE hmod = GetModuleHandle(TEXT("kernel32"));
+    return hmod;
+}
 
-#define GET_PROC_ADDRESS(hmod, functionName) reinterpret_cast<decltype(functionName)*>(GetProcAddress((hmod), #functionName))
+}
 
 extern "C"
@@ -18 +27 @@
     BOOL WINAPI IsDebuggerPresent_Helper()
     {
-        if (auto IsDebuggerPresent_Real = GET_PROC_ADDRESS(KERNEL32, IsDebuggerPresent))
+        static auto IsDebuggerPresent_Real = GET_PROC_ADDRESS(GetKernelModule(), IsDebuggerPresent);
+        if (IsDebuggerPresent_Real)
         {
             return IsDebuggerPresent_Real();
@@ -30 +40 @@
     void* WINAPI EncodePointer_Helper(void* p)
     {
-        if (auto EncodePointer_Real = GET_PROC_ADDRESS(KERNEL32, EncodePointer))
+        static auto EncodePointer_Real = GET_PROC_ADDRESS(GetKernelModule(), EncodePointer);
+        if (EncodePointer_Real)
         {
             return EncodePointer_Real(p);
@@ -42 +53 @@
     void* WINAPI DecodePointer_Helper(void* p)
     {
-        if (auto DecodePointer_Real = GET_PROC_ADDRESS(KERNEL32, DecodePointer))
+        static auto DecodePointer_Real = GET_PROC_ADDRESS(GetKernelModule(), DecodePointer);
+        if (DecodePointer_Real)
         {
             return DecodePointer_Real(p);
@@ -54 +66 @@
     BOOL WINAPI IsProcessorFeaturePresent_Helper(DWORD feture)
     {
-        if (auto IsProcessorFeaturePresent_Real = GET_PROC_ADDRESS(KERNEL32, IsProcessorFeaturePresent))
+        static auto IsProcessorFeaturePresent_Real = GET_PROC_ADDRESS(GetKernelModule(), IsProcessorFeaturePresent);
+        if (IsProcessorFeaturePresent_Real)
         {
             return IsProcessorFeaturePresent_Real(feture);
@@ -67 +80 @@
     BOOL WINAPI HeapSetInformation_Helper(HANDLE hHeap, HEAP_INFORMATION_CLASS hic, void* information, SSIZE_T informationLength)
     {
-        if (auto HeapSetInformation_Real = GET_PROC_ADDRESS(KERNEL32, HeapSetInformation))
+        static auto HeapSetInformation_Real = GET_PROC_ADDRESS(GetKernelModule(), HeapSetInformation);
+        if (HeapSetInformation_Real)
         {
             return HeapSetInformation_Real(hHeap, hic, information, informationLength);
@@ -77 +91 @@
     }
 
+    namespace
+    {
+        typedef decltype(InitializeCriticalSectionAndSpinCount)* PInitializeCriticalSectionAndSpinCount;
+
+        // 関数内静的変数とSEHは両立できないようなので別の関数へ分離
+        BOOL WINAPI InitializeCriticalSectionAndSpinCount_Helper2(PInitializeCriticalSectionAndSpinCount pfn, LPCRITICAL_SECTION lpcs, DWORD spinCount)
+        {
+            __try
+            {
+                if (pfn != nullptr)
+                {
+                    BOOL ret = pfn(lpcs, spinCount);
+                    return vi.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS
+                        ? TRUE
+                        : ret;
+                }
+                else
+                {
+                    ::InitializeCriticalSection(lpcs);
+                    return TRUE;
+                }
+            }
+            __except(EXCEPTION_EXECUTE_HANDLER)
+            {
+            }
+            ::SetLastError(ERROR_OUTOFMEMORY);
+            return FALSE;
+        }
+    }
+
     BOOL WINAPI InitializeCriticalSectionAndSpinCount_Helper(LPCRITICAL_SECTION lpcs, DWORD spinCount)
     {
-        __try
-        {
-            if (auto InitializeCriticalSectionAndSpinCount_Real = GET_PROC_ADDRESS(KERNEL32, InitializeCriticalSectionAndSpinCount))
-            {
-                OSVERSIONINFO vi = {sizeof vi};
-                ::GetVersionEx(&vi);
-                BOOL ret = InitializeCriticalSectionAndSpinCount_Real(lpcs, spinCount);
-                return vi.dwPlatformId == VER_PLATFORM_WIN32_WINDOWS
-                    ? TRUE
-                    : ret;
-            }
-            else
-            {
-                ::InitializeCriticalSection(lpcs);
-                return TRUE;
-            }
-        }
-        __except(EXCEPTION_EXECUTE_HANDLER)
-        {
-        }
-        return FALSE;
+        static auto InitializeCriticalSectionAndSpinCount_Real = GET_PROC_ADDRESS(GetKernelModule(), InitializeCriticalSectionAndSpinCount);
+        return InitializeCriticalSectionAndSpinCount_Helper2(InitializeCriticalSectionAndSpinCount_Real, lpcs, spinCount);
     }
 
@@ -109 +134 @@
     PSLIST_ENTRY WINAPI InterlockedPushEntrySList_Helper(PSLIST_HEADER head, PSLIST_ENTRY entry)
     {
-        auto InterlockedPushEntrySList_Real = GET_PROC_ADDRESS(KERNEL32, InterlockedPushEntrySList);
+        static auto InterlockedPushEntrySList_Real = GET_PROC_ADDRESS(GetKernelModule(), InterlockedPushEntrySList);
         assert(InterlockedPushEntrySList_Real != nullptr);
         return InterlockedPushEntrySList_Real(head, entry);
@@ -116 +141 @@
     PSLIST_ENTRY WINAPI InterlockedPopEntrySList_Helper(PSLIST_HEADER head)
     {
-        auto InterlockedPopEntrySList_Real = GET_PROC_ADDRESS(KERNEL32, InterlockedPopEntrySList);
+        static auto InterlockedPopEntrySList_Real = GET_PROC_ADDRESS(GetKernelModule(), InterlockedPopEntrySList);
         assert(InterlockedPopEntrySList_Real != nullptr);
         return InterlockedPopEntrySList_Real(head);