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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
87 lines
3.4 KiB
C++
87 lines
3.4 KiB
C++
//===-- DataBufferHeap.cpp --------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Utility/DataBufferHeap.h"
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using namespace lldb_private;
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//----------------------------------------------------------------------
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// Default constructor
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//----------------------------------------------------------------------
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DataBufferHeap::DataBufferHeap() : m_data() {}
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//----------------------------------------------------------------------
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// Initialize this class with "n" characters and fill the buffer with "ch".
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//----------------------------------------------------------------------
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DataBufferHeap::DataBufferHeap(lldb::offset_t n, uint8_t ch) : m_data() {
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if (n < m_data.max_size())
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m_data.assign(n, ch);
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}
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//----------------------------------------------------------------------
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// Initialize this class with a copy of the "n" bytes from the "bytes" buffer.
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//----------------------------------------------------------------------
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DataBufferHeap::DataBufferHeap(const void *src, lldb::offset_t src_len)
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: m_data() {
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CopyData(src, src_len);
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}
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//----------------------------------------------------------------------
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// Virtual destructor since this class inherits from a pure virtual base class.
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//----------------------------------------------------------------------
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DataBufferHeap::~DataBufferHeap() = default;
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//----------------------------------------------------------------------
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// Return a pointer to the bytes owned by this object, or nullptr if the object
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// contains no bytes.
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//----------------------------------------------------------------------
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uint8_t *DataBufferHeap::GetBytes() {
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return (m_data.empty() ? nullptr : m_data.data());
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}
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//----------------------------------------------------------------------
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// Return a const pointer to the bytes owned by this object, or nullptr if the
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// object contains no bytes.
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//----------------------------------------------------------------------
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const uint8_t *DataBufferHeap::GetBytes() const {
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return (m_data.empty() ? nullptr : m_data.data());
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}
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//----------------------------------------------------------------------
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// Return the number of bytes this object currently contains.
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//----------------------------------------------------------------------
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uint64_t DataBufferHeap::GetByteSize() const { return m_data.size(); }
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//----------------------------------------------------------------------
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// Sets the number of bytes that this object should be able to contain. This
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// can be used prior to copying data into the buffer.
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//----------------------------------------------------------------------
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uint64_t DataBufferHeap::SetByteSize(uint64_t new_size) {
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m_data.resize(new_size);
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return m_data.size();
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}
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void DataBufferHeap::CopyData(const void *src, uint64_t src_len) {
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const uint8_t *src_u8 = (const uint8_t *)src;
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if (src && src_len > 0)
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m_data.assign(src_u8, src_u8 + src_len);
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else
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m_data.clear();
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}
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void DataBufferHeap::AppendData(const void *src, uint64_t src_len) {
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m_data.insert(m_data.end(), (const uint8_t *)src,
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(const uint8_t *)src + src_len);
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}
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void DataBufferHeap::Clear() {
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buffer_t empty;
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m_data.swap(empty);
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}
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