+++ /dev/null
-/* Copyright (c) 2008-2023. The SimGrid Team. All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#ifndef SIMGRID_MC_ADDRESS_SPACE_H
-#define SIMGRID_MC_ADDRESS_SPACE_H
-
-#include "src/mc/mc_forward.hpp"
-#include "src/mc/remote/RemotePtr.hpp"
-
-namespace simgrid::mc {
-
-/** Options for read operations
- *
- * This is a set of flags managed with bitwise operators. Only the
- * meaningful operations are defined: addition, conversions to/from
- * integers are not allowed.
- */
-class ReadOptions {
- std::uint32_t value_ = 0;
- constexpr explicit ReadOptions(std::uint32_t value) : value_(value) {}
-
-public:
- constexpr ReadOptions() = default;
-
- explicit constexpr operator bool() const { return value_ != 0; }
- constexpr bool operator!() const { return value_ == 0; }
-
- constexpr ReadOptions operator|(ReadOptions const& that) const
- {
- return ReadOptions(value_ | that.value_);
- }
- constexpr ReadOptions operator&(ReadOptions const& that) const
- {
- return ReadOptions(value_ & that.value_);
- }
- constexpr ReadOptions operator^(ReadOptions const& that) const
- {
- return ReadOptions(value_ ^ that.value_);
- }
- constexpr ReadOptions operator~() const
- {
- return ReadOptions(~value_);
- }
-
- ReadOptions& operator|=(ReadOptions const& that)
- {
- value_ |= that.value_;
- return *this;
- }
- ReadOptions& operator&=(ReadOptions const& that)
- {
- value_ &= that.value_;
- return *this;
- }
- ReadOptions& operator^=(ReadOptions const& that)
- {
- value_ ^= that.value_;
- return *this;
- }
-
- /** Copy the data to the given buffer */
- static constexpr ReadOptions none() { return ReadOptions(0); }
-
- /** Allows to return a pointer to another buffer where the data is
- * available instead of copying the data into the buffer
- */
- static constexpr ReadOptions lazy() { return ReadOptions(1); }
-};
-
-/** A given state of a given process (abstract base class)
- *
- * Currently, this might either be:
- *
- * * the current state of an existing process;
- *
- * * a snapshot.
- */
-class AddressSpace {
-private:
- RemoteProcessMemory* remote_process_memory_;
-
-public:
- explicit AddressSpace(RemoteProcessMemory* process) : remote_process_memory_(process) {}
- virtual ~AddressSpace() = default;
-
- /** The process of this address space
- *
- * This is where we can get debug information, memory layout, etc.
- */
- simgrid::mc::RemoteProcessMemory* get_remote_process_memory() const { return remote_process_memory_; }
-
- /** Read data from the address space
- *
- * @param buffer target buffer for the data
- * @param size number of bytes to read
- * @param address remote source address of the data
- * @param options
- */
- virtual void* read_bytes(void* buffer, std::size_t size, RemotePtr<void> address,
- ReadOptions options = ReadOptions::none()) const = 0;
-
- /** Read a given data structure from the address space */
- template <class T> inline void read(T* buffer, RemotePtr<T> ptr) const { this->read_bytes(buffer, sizeof(T), ptr); }
-
- template <class T> inline void read(Remote<T>& buffer, RemotePtr<T> ptr) const
- {
- this->read_bytes(buffer.get_buffer(), sizeof(T), ptr);
- }
-
- /** Read a given data structure from the address space
- *
- * This version returns by value.
- */
- template <class T> inline Remote<T> read(RemotePtr<T> ptr) const
- {
- Remote<T> res;
- this->read_bytes(&res, sizeof(T), ptr);
- return res;
- }
-
- /** Read a string of known size */
- std::string read_string(RemotePtr<char> address, std::size_t len) const
- {
- std::string res;
- res.resize(len);
- this->read_bytes(&res[0], len, address);
- return res;
- }
-};
-
-} // namespace simgrid::mc
-
-#endif
