1 files changed, 94 insertions, 0 deletions
diff --git a/contrib/llvm/tools/lldb/source/Utility/DataBufferHeap.cpp b/contrib/llvm/tools/lldb/source/Utility/DataBufferHeap.cpp
new file mode 100644
index 0000000..aa1c3d3
--- /dev/null
+++ b/contrib/llvm/tools/lldb/source/Utility/DataBufferHeap.cpp
@@ -0,0 +1,94 @@
+//===-- DataBufferHeap.cpp --------------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Utility/DataBufferHeap.h"
+
+// C Includes
+// C++ Includes
+// Other libraries and framework includes
+// Project includes
+
+using namespace lldb_private;
+
+//----------------------------------------------------------------------
+// Default constructor
+//----------------------------------------------------------------------
+DataBufferHeap::DataBufferHeap() : m_data() {}
+
+//----------------------------------------------------------------------
+// Initialize this class with "n" characters and fill the buffer
+// with "ch".
+//----------------------------------------------------------------------
+DataBufferHeap::DataBufferHeap(lldb::offset_t n, uint8_t ch) : m_data() {
+  if (n < m_data.max_size())
+    m_data.assign(n, ch);
+}
+
+//----------------------------------------------------------------------
+// Initialize this class with a copy of the "n" bytes from the "bytes"
+// buffer.
+//----------------------------------------------------------------------
+DataBufferHeap::DataBufferHeap(const void *src, lldb::offset_t src_len)
+    : m_data() {
+  CopyData(src, src_len);
+}
+
+//----------------------------------------------------------------------
+// Virtual destructor since this class inherits from a pure virtual
+// base class.
+//----------------------------------------------------------------------
+DataBufferHeap::~DataBufferHeap() = default;
+
+//----------------------------------------------------------------------
+// Return a pointer to the bytes owned by this object, or nullptr if
+// the object contains no bytes.
+//----------------------------------------------------------------------
+uint8_t *DataBufferHeap::GetBytes() {
+  return (m_data.empty() ? nullptr : m_data.data());
+}
+
+//----------------------------------------------------------------------
+// Return a const pointer to the bytes owned by this object, or nullptr
+// if the object contains no bytes.
+//----------------------------------------------------------------------
+const uint8_t *DataBufferHeap::GetBytes() const {
+  return (m_data.empty() ? nullptr : m_data.data());
+}
+
+//----------------------------------------------------------------------
+// Return the number of bytes this object currently contains.
+//----------------------------------------------------------------------
+uint64_t DataBufferHeap::GetByteSize() const { return m_data.size(); }
+
+//----------------------------------------------------------------------
+// Sets the number of bytes that this object should be able to
+// contain. This can be used prior to copying data into the buffer.
+//----------------------------------------------------------------------
+uint64_t DataBufferHeap::SetByteSize(uint64_t new_size) {
+  m_data.resize(new_size);
+  return m_data.size();
+}
+
+void DataBufferHeap::CopyData(const void *src, uint64_t src_len) {
+  const uint8_t *src_u8 = (const uint8_t *)src;
+  if (src && src_len > 0)
+    m_data.assign(src_u8, src_u8 + src_len);
+  else
+    m_data.clear();
+}
+
+void DataBufferHeap::AppendData(const void *src, uint64_t src_len) {
+  m_data.insert(m_data.end(), (const uint8_t *)src,
+                (const uint8_t *)src + src_len);
+}
+
+void DataBufferHeap::Clear() {
+  buffer_t empty;
+  m_data.swap(empty);
+}