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//===-- VMRange.h -----------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_VMRange_h_
#define liblldb_VMRange_h_
#include "lldb/lldb-types.h" // for addr_t
#include <stddef.h> // for size_t
#include <stdint.h> // for uint32_t
#include <vector>
namespace lldb_private {
class Stream;
}
namespace lldb_private {
//----------------------------------------------------------------------
// A vm address range. These can represent offsets ranges or actual
// addresses.
//----------------------------------------------------------------------
class VMRange {
public:
typedef std::vector<VMRange> collection;
typedef collection::iterator iterator;
typedef collection::const_iterator const_iterator;
VMRange() : m_base_addr(0), m_byte_size(0) {}
VMRange(lldb::addr_t start_addr, lldb::addr_t end_addr)
: m_base_addr(start_addr),
m_byte_size(end_addr > start_addr ? end_addr - start_addr : 0) {}
~VMRange() {}
void Clear() {
m_base_addr = 0;
m_byte_size = 0;
}
// Set the start and end values
void Reset(lldb::addr_t start_addr, lldb::addr_t end_addr) {
SetBaseAddress(start_addr);
SetEndAddress(end_addr);
}
// Set the start value for the range, and keep the same size
void SetBaseAddress(lldb::addr_t base_addr) { m_base_addr = base_addr; }
void SetEndAddress(lldb::addr_t end_addr) {
const lldb::addr_t base_addr = GetBaseAddress();
if (end_addr > base_addr)
m_byte_size = end_addr - base_addr;
else
m_byte_size = 0;
}
lldb::addr_t GetByteSize() const { return m_byte_size; }
void SetByteSize(lldb::addr_t byte_size) { m_byte_size = byte_size; }
lldb::addr_t GetBaseAddress() const { return m_base_addr; }
lldb::addr_t GetEndAddress() const { return GetBaseAddress() + m_byte_size; }
bool IsValid() const { return m_byte_size > 0; }
bool Contains(lldb::addr_t addr) const {
return (GetBaseAddress() <= addr) && (addr < GetEndAddress());
}
bool Contains(const VMRange &range) const {
if (Contains(range.GetBaseAddress())) {
lldb::addr_t range_end = range.GetEndAddress();
return (GetBaseAddress() <= range_end) && (range_end <= GetEndAddress());
}
return false;
}
void Dump(Stream *s, lldb::addr_t base_addr = 0,
uint32_t addr_width = 8) const;
class ValueInRangeUnaryPredicate {
public:
ValueInRangeUnaryPredicate(lldb::addr_t value) : _value(value) {}
bool operator()(const VMRange &range) const {
return range.Contains(_value);
}
lldb::addr_t _value;
};
class RangeInRangeUnaryPredicate {
public:
RangeInRangeUnaryPredicate(VMRange range) : _range(range) {}
bool operator()(const VMRange &range) const {
return range.Contains(_range);
}
const VMRange &_range;
};
static bool ContainsValue(const VMRange::collection &coll,
lldb::addr_t value);
static bool ContainsRange(const VMRange::collection &coll,
const VMRange &range);
// Returns a valid index into coll when a match is found, else UINT32_MAX
// is returned
static size_t FindRangeIndexThatContainsValue(const VMRange::collection &coll,
lldb::addr_t value);
protected:
lldb::addr_t m_base_addr;
lldb::addr_t m_byte_size;
};
bool operator==(const VMRange &lhs, const VMRange &rhs);
bool operator!=(const VMRange &lhs, const VMRange &rhs);
bool operator<(const VMRange &lhs, const VMRange &rhs);
bool operator<=(const VMRange &lhs, const VMRange &rhs);
bool operator>(const VMRange &lhs, const VMRange &rhs);
bool operator>=(const VMRange &lhs, const VMRange &rhs);
} // namespace lldb_private
#endif // liblldb_VMRange_h_
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