#ifndef SIMGRID_MC_ADDRESS_SPACE_H
#define SIMGRID_MC_ADDRESS_SPACE_H
+#include <cassert>
#include <cstddef>
#include <cstdint>
+#include <cstring>
#include <type_traits>
+#include <string>
+#include <vector>
+
#include "src/mc/mc_forward.hpp"
-#include "src/mc/RemotePtr.hpp"
+#include "src/mc/remote/RemotePtr.hpp"
namespace simgrid {
namespace mc {
-/** Process index used when no process is available
+/** Process index used when no process is available (SMPI privatization)
*
- * The expected behaviour is that if a process index is needed it will fail.
+ * The expected behavior is that if a process index is needed it will fail.
* */
const int ProcessIndexMissing = -1;
-/** Process index used when we don't care about the process index
+/** Process index used when we don't care about the process index (SMPI privatization)
* */
const int ProcessIndexDisabled = -2;
-/** Constant used when any process will do.
+/** Constant used when any process will do (SMPI privatization)
*
- * This is is index of the first process.
+ * Note: This is is index of the first process.
*/
const int ProcessIndexAny = 0;
* * the current state of an existing process;
*
* * a snapshot.
+ *
+ * In order to support SMPI privatization, the can read the memory from the
+ * context of a given SMPI process: if specified, the code reads data from the
+ * correct SMPI privatization VMA.
*/
class AddressSpace {
private:
Process* process_;
public:
AddressSpace(Process* process) : process_(process) {}
- virtual ~AddressSpace();
+ virtual ~AddressSpace() = default;
+ /** The process of this addres space
+ *
+ * This is where we can get debug informations, memory layout, etc.
+ */
simgrid::mc::Process* process() const { return process_; }
/** Read data from the address space
*
* @param buffer target buffer for the data
- * @param size number of bytes
+ * @param size number of bytes to read
* @param address remote source address of the data
* @param process_index which process (used for SMPI privatization)
* @param options
/** Read a given data structure from the address space */
template<class T> inline
- void read(T *buffer, RemotePtr<T> ptr, int process_index = ProcessIndexAny)
+ void read(T *buffer, RemotePtr<T> ptr, int process_index = ProcessIndexAny) const
{
this->read_bytes(buffer, sizeof(T), ptr, process_index);
}
- /** Read a given data structure from the address space */
template<class T> inline
- T read(RemotePtr<T> ptr, int process_index = ProcessIndexMissing)
+ void read(Remote<T>& buffer, RemotePtr<T> ptr, int process_index = ProcessIndexAny) const
{
- static_assert(std::is_trivial<T>::value, "Cannot read a non-trivial type");
- T res;
- return *(T*)this->read_bytes(&res, sizeof(T), ptr, process_index);
+ this->read_bytes(buffer.getBuffer(), sizeof(T), ptr, process_index);
}
+
+ /** Read a given data structure from the addres space
+ *
+ * This version returns by value.
+ */
+ template<class T> inline
+ Remote<T> read(RemotePtr<T> ptr, int process_index = ProcessIndexMissing) const
+ {
+ Remote<T> res;
+ this->read_bytes(&res, sizeof(T), ptr, process_index);
+ 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;
+ }
+
};
}