Add Beast fork from JUCE commit 265fb0e8ebc26e1469d6edcc68d2ca9acefeb508

modules/beast_core/files/beast_FileInputStream.cpp

@@ -0,0 +1,90 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of Beast: https://github.com/vinniefalco/Beast
+    Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
+
+    Portions of this file are from JUCE.
+    Copyright (c) 2013 - Raw Material Software Ltd.
+    Please visit http://www.juce.com
+
+    Permission to use, copy, modify, and/or distribute this software for any
+    purpose  with  or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL ,  DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+int64 beast_fileSetPosition (void* handle, int64 pos);
+
+//==============================================================================
+FileInputStream::FileInputStream (const File& f)
+    : file (f),
+      fileHandle (nullptr),
+      currentPosition (0),
+      status (Result::ok()),
+      needToSeek (true)
+{
+    openHandle();
+}
+
+FileInputStream::~FileInputStream()
+{
+    closeHandle();
+}
+
+//==============================================================================
+int64 FileInputStream::getTotalLength()
+{
+    return file.getSize();
+}
+
+int FileInputStream::read (void* buffer, int bytesToRead)
+{
+    bassert (openedOk());
+    bassert (buffer != nullptr && bytesToRead >= 0);
+
+    if (needToSeek)
+    {
+        if (beast_fileSetPosition (fileHandle, currentPosition) < 0)
+            return 0;
+
+        needToSeek = false;
+    }
+
+    const size_t num = readInternal (buffer, (size_t) bytesToRead);
+    currentPosition += num;
+
+    return (int) num;
+}
+
+bool FileInputStream::isExhausted()
+{
+    return currentPosition >= getTotalLength();
+}
+
+int64 FileInputStream::getPosition()
+{
+    return currentPosition;
+}
+
+bool FileInputStream::setPosition (int64 pos)
+{
+    bassert (openedOk());
+
+    if (pos != currentPosition)
+    {
+        pos = blimit ((int64) 0, getTotalLength(), pos);
+
+        needToSeek |= (currentPosition != pos);
+        currentPosition = pos;
+    }
+
+    return true;
+}