chore: initial commit (extracted from Launchers monorepo)

Plugin: ns7zip v2.0.0 Architectures: x86-ansi, x86-unicode, amd64-unicode License: LGPL-2.1-or-later
2026-04-29 14:07:51 +02:00
commit d074cc7c07
3848 changed files with 1076682 additions and 0 deletions
@@ -0,0 +1,101 @@
+// StreamUtils.cpp
+
+#include "StdAfx.h"
+
+#include "../../Common/MyCom.h"
+
+#include "StreamUtils.h"
+
+static const UInt32 kBlockSize = ((UInt32)1 << 31);
+
+
+HRESULT InStream_SeekToBegin(IInStream *stream) throw()
+{
+  return InStream_SeekSet(stream, 0);
+}
+
+
+HRESULT InStream_AtBegin_GetSize(IInStream *stream, UInt64 &sizeRes) throw()
+{
+#ifdef _WIN32
+  {
+    Z7_DECL_CMyComPtr_QI_FROM(
+        IStreamGetSize,
+        streamGetSize, stream)
+    if (streamGetSize && streamGetSize->GetSize(&sizeRes) == S_OK)
+      return S_OK;
+  }
+#endif
+  const HRESULT hres = InStream_GetSize_SeekToEnd(stream, sizeRes);
+  const HRESULT hres2 = InStream_SeekToBegin(stream);
+  return hres != S_OK ? hres : hres2;
+}
+
+
+HRESULT InStream_GetPos_GetSize(IInStream *stream, UInt64 &curPosRes, UInt64 &sizeRes) throw()
+{
+  RINOK(InStream_GetPos(stream, curPosRes))
+#ifdef _WIN32
+  {
+    Z7_DECL_CMyComPtr_QI_FROM(
+        IStreamGetSize,
+        streamGetSize, stream)
+    if (streamGetSize && streamGetSize->GetSize(&sizeRes) == S_OK)
+      return S_OK;
+  }
+#endif
+  const HRESULT hres = InStream_GetSize_SeekToEnd(stream, sizeRes);
+  const HRESULT hres2 = InStream_SeekSet(stream, curPosRes);
+  return hres != S_OK ? hres : hres2;
+}
+
+
+
+HRESULT ReadStream(ISequentialInStream *stream, void *data, size_t *processedSize) throw()
+{
+  size_t size = *processedSize;
+  *processedSize = 0;
+  while (size != 0)
+  {
+    UInt32 curSize = (size < kBlockSize) ? (UInt32)size : kBlockSize;
+    UInt32 processedSizeLoc;
+    HRESULT res = stream->Read(data, curSize, &processedSizeLoc);
+    *processedSize += processedSizeLoc;
+    data = (void *)((Byte *)data + processedSizeLoc);
+    size -= processedSizeLoc;
+    RINOK(res)
+    if (processedSizeLoc == 0)
+      return S_OK;
+  }
+  return S_OK;
+}
+
+HRESULT ReadStream_FALSE(ISequentialInStream *stream, void *data, size_t size) throw()
+{
+  size_t processedSize = size;
+  RINOK(ReadStream(stream, data, &processedSize))
+  return (size == processedSize) ? S_OK : S_FALSE;
+}
+
+HRESULT ReadStream_FAIL(ISequentialInStream *stream, void *data, size_t size) throw()
+{
+  size_t processedSize = size;
+  RINOK(ReadStream(stream, data, &processedSize))
+  return (size == processedSize) ? S_OK : E_FAIL;
+}
+
+HRESULT WriteStream(ISequentialOutStream *stream, const void *data, size_t size) throw()
+{
+  while (size != 0)
+  {
+    UInt32 curSize = (size < kBlockSize) ? (UInt32)size : kBlockSize;
+    UInt32 processedSizeLoc;
+    HRESULT res = stream->Write(data, curSize, &processedSizeLoc);
+    data = (const void *)((const Byte *)data + processedSizeLoc);
+    size -= processedSizeLoc;
+    RINOK(res)
+    if (processedSizeLoc == 0)
+      return E_FAIL;
+  }
+  return S_OK;
+}