[+] NT: IOHandle::IsFile(), IOHandle::IsTTY(), IOHandle::IsPipe()

[*] Revert to supporting write-only handles

Include/Aurora/IO/IOHandle.hpp

@@ -108,6 +108,8 @@ namespace Aurora::IO
 
         virtual AuUInt64 GetOSHandle() = 0;
 
+        virtual AuOptionalEx<AuUInt64> GetOSHandleSafe() = 0;
+
         virtual AuUInt64 GetOSReadHandle() = 0;
 
         virtual AuOptionalEx<AuUInt64> GetOSReadHandleSafe() = 0;
@@ -123,6 +125,12 @@ namespace Aurora::IO
         virtual bool IsAsync() = 0;
 
         virtual AuString GetPath() = 0;
+
+        virtual bool IsFile() = 0;
+
+        virtual bool IsTTY() = 0;
+
+        virtual bool IsPipe() = 0;
     };
     
     AUKN_SHARED_SOO(IOHandle, IIOHandle, 256);

Source/IO/AuIOHandle.NT.cpp

@@ -245,8 +245,109 @@ namespace Aurora::IO
 
             return this->IsValid();
         }
+
+        bool IsFile() override;
+        bool IsTTY() override;
+        bool IsPipe() override;
+
+        AuOptionalEx<bool> optIsFile {};
+        AuOptionalEx<bool> optIsPipe {};
+        AuOptionalEx<bool> optIsTTY {};
     };
 
+    bool NTIOHandle::IsFile()
+    {
+        bool bIsFile {};
+        DWORD dwType {};
+        HANDLE hHandle {};
+
+        if (auto file = this->optIsFile)
+        {
+            return file.value();
+        }
+
+        if (auto optHandle = this->GetOSHandleSafe())
+        {
+            hHandle = (HANDLE)optHandle.value();
+        }
+        else
+        {
+            SysPushErrorUninitialized();
+            return false;
+        }
+
+        if (!(dwType = GetFileType(hHandle)))
+        {
+            return false;
+        }
+
+        bIsFile = dwType == FILE_TYPE_DISK;
+        this->optIsFile = bIsFile;
+        return bIsFile;
+    }
+
+    bool NTIOHandle::IsTTY()
+    {
+        bool bIsTTY {};
+        DWORD dwType {};
+        HANDLE hHandle {};
+
+        if (auto file = this->optIsTTY)
+        {
+            return file.value();
+        }
+
+        if (auto optHandle = this->GetOSHandleSafe())
+        {
+            hHandle = (HANDLE)optHandle.value();
+        }
+        else
+        {
+            SysPushErrorUninitialized();
+            return false;
+        }
+
+        if (!(dwType = GetFileType(hHandle)))
+        {
+            return false;
+        }
+
+        bIsTTY = dwType == FILE_TYPE_CHAR;
+        this->optIsTTY = bIsTTY;
+        return bIsTTY;
+    }
+
+    bool NTIOHandle::IsPipe()
+    {
+        bool bIsPipe {};
+        DWORD dwType {};
+        HANDLE hHandle {};
+
+        if (auto file = this->optIsPipe)
+        {
+            return file.value();
+        }
+
+        if (auto optHandle = this->GetOSHandleSafe())
+        {
+            hHandle = (HANDLE)optHandle.value();
+        }
+        else
+        {
+            SysPushErrorUninitialized();
+            return false;
+        }
+
+        if (!(dwType = GetFileType(hHandle)))
+        {
+            return false;
+        }
+
+        bIsPipe = dwType == FILE_TYPE_PIPE;
+        this->optIsPipe = bIsPipe;
+        return bIsPipe;
+    }
+
     AUKN_SYM IIOHandle *IOHandleNew()
     {
         return _new NTIOHandle();

Source/IO/AuIOHandle.cpp

@@ -126,6 +126,21 @@ namespace Aurora::IO
         return true;
     }
 
+    AuOptionalEx<AuUInt64> AFileHandle::GetOSHandleSafe()
+    {
+        if (auto write = this->uOSWriteHandle)
+        {
+            return write;
+        }
+
+        if (auto read = this->uOSReadHandle)
+        {
+            return read;
+        }
+
+        return {};
+    }
+
     AuUInt64 AFileHandle::GetOSHandle()
     {
         return this->uOSReadHandle.ValueOr(this->uOSWriteHandle.Value());

Source/IO/AuIOHandle.hpp

@@ -32,6 +32,8 @@ namespace Aurora::IO
 
         AuUInt64 GetOSHandle() override;
 
+        AuOptionalEx<AuUInt64> GetOSHandleSafe() override;
+
         AuUInt64 GetOSReadHandle() override;
 
         AuOptionalEx<AuUInt64> GetOSReadHandleSafe() override;

Source/IO/FS/FileStream.NT.cpp

@@ -30,10 +30,25 @@ namespace Aurora::IO::FS
     {
         LARGE_INTEGER distance {};
         LARGE_INTEGER pos {};
+        HANDLE hHandle {};
 
-        auto hHandle = this->GetWin32Handle();
+        if (auto pHandle = this->pHandle_)
+        {
+            if (!pHandle->IsFile())
+            {
+                SysPushErrorIOResourceRejected();
+                return 0;
+            }
 
-        if (hHandle == INVALID_HANDLE_VALUE)
+             hHandle = this->GetWin32Handle();
+
+             if (hHandle == INVALID_HANDLE_VALUE)
+             {
+                 SysPushErrorInvalidFd();
+                 return 0;
+             }
+        }
+        else
         {
             SysPushErrorUninitialized();
             return 0;
@@ -55,13 +70,28 @@ namespace Aurora::IO::FS
     {
         LARGE_INTEGER distance {};
         LARGE_INTEGER pos {};
+        HANDLE hHandle {};
 
-        auto hHandle = this->GetWin32Handle();
+        if (auto pHandle = this->pHandle_)
+        {
+            if (!pHandle->IsFile())
+            {
+                SysPushErrorIOResourceRejected();
+                return 0;
+            }
 
-        if (hHandle == INVALID_HANDLE_VALUE)
+            hHandle = this->GetWin32Handle();
+
+            if (hHandle == INVALID_HANDLE_VALUE)
+            {
+                SysPushErrorInvalidFd();
+                return 0;
+            }
+        }
+        else
         {
             SysPushErrorUninitialized();
-            return false;
+            return 0;
         }
 
         distance.QuadPart = offset;
@@ -78,10 +108,25 @@ namespace Aurora::IO::FS
     AuUInt64 WinFileStream::GetLength()
     {
         LARGE_INTEGER length;
+        HANDLE hHandle {};
 
-        auto hHandle = this->GetWin32Handle();
+        if (auto pHandle = this->pHandle_)
+        {
+            if (!pHandle->IsFile())
+            {
+                SysPushErrorIOResourceRejected();
+                return 0;
+            }
 
-        if (hHandle == INVALID_HANDLE_VALUE)
+            hHandle = this->GetWin32Handle();
+
+            if (hHandle == INVALID_HANDLE_VALUE)
+            {
+                SysPushErrorInvalidFd();
+                return 0;
+            }
+        }
+        else
         {
             SysPushErrorUninitialized();
             return 0;
@@ -98,12 +143,18 @@ namespace Aurora::IO::FS
 
     bool WinFileStream::Read(const Memory::MemoryViewStreamWrite &parameters)
     {
-        auto hHandle = this->GetWin32Handle();
+        if (!this->pHandle_)
+        {
+            SysPushErrorUninitialized();
+            return 0;
+        }
+
+        auto hHandle = this->GetWin32Handle(true);
         HANDLE hEventHandle { INVALID_HANDLE_VALUE };
 
         if (hHandle == INVALID_HANDLE_VALUE)
         {
-            SysPushErrorUninitialized();
+            SysPushErrorIOResourceRejected();
             return {};
         }
 
@@ -339,11 +390,21 @@ namespace Aurora::IO::FS
         return this->pHandle_;
     }
 
-    HANDLE WinFileStream::GetWin32Handle()
+    HANDLE WinFileStream::GetWin32Handle(bool bReadOnly)
     {
-        return this->pHandle_ ?
-            (HANDLE)this->pHandle_->GetOSWriteHandleSafe().ValueOr(this->pHandle_->GetOSReadHandleSafe().ValueOr((AuUInt)INVALID_HANDLE_VALUE)) :
-            INVALID_HANDLE_VALUE;
+        if (this->pHandle_)
+        {
+            if (bReadOnly)
+            {
+                return (HANDLE)this->pHandle_->GetOSReadHandleSafe().ValueOr((AuUInt)INVALID_HANDLE_VALUE);
+            }
+            else
+            {
+                return (HANDLE)this->pHandle_->GetOSWriteHandleSafe().ValueOr(this->pHandle_->GetOSReadHandleSafe().ValueOr((AuUInt)INVALID_HANDLE_VALUE));
+            }
+        }
+
+        return INVALID_HANDLE_VALUE;
     }
 
     AUKN_SYM AuSPtr<IFileStream> OpenBlockingFileStreamFromHandle(AuSPtr<IIOHandle> pIOHandle)

Source/IO/FS/FileStream.NT.hpp

@@ -28,7 +28,7 @@ namespace Aurora::IO::FS
         void     MakeTemporary() override;
         AuSPtr<IIOHandle> GetHandle() override;
 
-        HANDLE   GetWin32Handle();
+        HANDLE   GetWin32Handle(bool bReadOnly = false);
 
     private:
         AuSPtr<IIOHandle> pHandle_;

Source/IO/FS/FileStream.Unix.cpp

@@ -215,10 +215,10 @@ namespace Aurora::IO::FS
             return 0;
         }
 
-        int fd = this->GetUnixHandle();
+        int fd = (int)this->pHandle_->GetOSReadHandleSafe().ValueOr((AuUInt)-1);
         if (fd == -1)
         {
-            SysPushErrorUninitialized();
+            SysPushErrorIOResourceRejected();
             return 0;
         }