forked from OSchip/llvm-project
95 lines
3.5 KiB
C++
95 lines
3.5 KiB
C++
//===-- 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);
|
|
}
|