1 /* Copyright (c) 2018. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #ifndef SIMGRID_EXCEPTIONS_HPP
7 #define SIMGRID_EXCEPTIONS_HPP
9 /** @file exception.hpp SimGrid-specific Exceptions
11 * Defines all possible exception that could occur in a SimGrid library.
14 #include <xbt/backtrace.hpp>
23 /** Contextual information about an execution location (file:line:func and backtrace, procname, pid)
25 * Constitute the contextual information of where an exception was thrown
27 * These tuples (__FILE__, __LINE__, __func__, backtrace, procname, pid)
28 * are best created with @ref XBT_THROW_POINT.
34 ThrowPoint() = default;
35 explicit ThrowPoint(const char* file, int line, const char* function, Backtrace bt, std::string actor_name, int pid)
36 : file_(file), line_(line), function_(function), backtrace_(bt), procname_(actor_name), pid_(pid)
40 const char* file_ = nullptr;
42 const char* function_ = nullptr;
44 std::string procname_ = ""; /**< Name of the process who thrown this */
45 int pid_ = 0; /**< PID of the process who thrown this */
48 /** Create a ThrowPoint with (__FILE__, __LINE__, __func__) */
49 #define XBT_THROW_POINT \
50 ::simgrid::xbt::ThrowPoint(__FILE__, __LINE__, __func__, simgrid::xbt::backtrace(), xbt_procname(), xbt_getpid())
53 /** Ancestor class of all SimGrid exception */
54 class Exception : public std::runtime_error {
56 Exception(simgrid::xbt::ThrowPoint throwpoint, std::string message)
57 : std::runtime_error(message), throwpoint_(throwpoint)
61 /** Return the information about where the exception was thrown */
62 xbt::ThrowPoint const& throw_point() const { return throwpoint_; }
65 xbt::ThrowPoint throwpoint_;
68 } // namespace simgrid
70 /** A legacy exception
72 * It is defined by a category and a value within that category (as well as
73 * an optional error message).
75 * This used to be a structure for C exceptions but it has been retrofitted
76 * as a C++ exception and some of its data has been moved in the
77 * @ref WithContextException base class. We should deprecate it and replace it
78 * with either C++ different exceptions or `std::system_error` which already
79 * provides this (category + error code) logic.
83 class XBT_PUBLIC xbt_ex : public simgrid::Exception {
87 * @param throwpoint Throw point (use XBT_THROW_POINT)
88 * @param message Exception message
90 xbt_ex(simgrid::xbt::ThrowPoint throwpoint, std::string message) : simgrid::Exception(throwpoint, message) {}
92 ~xbt_ex(); // DO NOT define it here -- see ex.cpp for a rationale
94 /** Category (what went wrong) */
95 xbt_errcat_t category = unknown_error;
97 /** Why did it went wrong */
103 /** Exception raised when a timeout elapsed */
104 class TimeoutError : public xbt_ex {
106 TimeoutError(simgrid::xbt::ThrowPoint throwpoint, std::string message) : xbt_ex(throwpoint, message)
108 category = timeout_error;
112 /** Exception raised when an host fails */
113 class HostFailureException : public xbt_ex {
115 HostFailureException(simgrid::xbt::ThrowPoint throwpoint, std::string message) : xbt_ex(throwpoint, message)
117 category = host_error;
121 /** Exception raised when a communication fails because of the network */
122 class NetworkFailureException : public xbt_ex {
125 /** Exception raised when something got canceled before completion */
126 class CancelException : public xbt_ex {
129 } // namespace simgrid