#include <xbt/ex.h>
#include <atomic>
+#include <functional>
#include <stdexcept>
#include <string>
/** Create a ThrowPoint with (__FILE__, __LINE__, __func__) */
#define XBT_THROW_POINT \
::simgrid::xbt::ThrowPoint(__FILE__, __LINE__, __func__, simgrid::xbt::Backtrace(), xbt_procname(), xbt_getpid())
+
+class XBT_PUBLIC ImpossibleError : public std::logic_error {
+public:
+ explicit ImpossibleError(const std::string& arg) : std::logic_error(arg) {}
+ ~ImpossibleError();
+};
+
+class XBT_PUBLIC UnimplementedError : public std::logic_error {
+public:
+ explicit UnimplementedError(const std::string& arg) : std::logic_error(arg) {}
+ ~UnimplementedError();
+};
+
} // namespace xbt
/** Ancestor class of all SimGrid exception */
: std::runtime_error(std::move(message)), throwpoint_(std::move(throwpoint))
{
}
+ ~Exception(); // DO NOT define it here -- see Exception.cpp for a rationale
/** Return the information about where the exception was thrown */
xbt::ThrowPoint const& throw_point() const { return throwpoint_; }
std::string const resolve_backtrace() const { return throwpoint_.backtrace_.resolve(); }
+ /** Allow to carry a value (used by waitall/waitany) */
+ int value = 0;
+
private:
xbt::ThrowPoint throwpoint_;
};
-} // namespace simgrid
-
-/** A legacy exception
- *
- * It is defined by a category and a value within that category (as well as
- * an optional error message).
- *
- * This used to be a structure for C exceptions but it has been retrofitted
- * as a C++ exception and some of its data has been moved in the
- * @ref WithContextException base class. We should deprecate it and replace it
- * with either C++ different exceptions or `std::system_error` which already
- * provides this (category + error code) logic.
- *
- * @ingroup XBT_ex_c
- */
-class XBT_PUBLIC xbt_ex : public simgrid::Exception {
-public:
- /**
- *
- * @param throwpoint Throw point (use XBT_THROW_POINT)
- * @param message Exception message
- */
- xbt_ex(simgrid::xbt::ThrowPoint&& throwpoint, std::string&& message)
- : simgrid::Exception(std::move(throwpoint), std::move(message))
- {
- }
-
- xbt_ex(const xbt_ex&) = default;
-
- ~xbt_ex(); // DO NOT define it here -- see ex.cpp for a rationale
-
- /** Category (what went wrong) */
- xbt_errcat_t category = unknown_error;
-
- /** Why did it went wrong */
- int value = 0;
-};
-
-namespace simgrid {
-
/** Exception raised when a timeout elapsed */
-class TimeoutError : public xbt_ex {
+class TimeoutException : public Exception {
public:
- TimeoutError(simgrid::xbt::ThrowPoint&& throwpoint, std::string&& message)
- : xbt_ex(std::move(throwpoint), std::move(message))
+ TimeoutException(simgrid::xbt::ThrowPoint&& throwpoint, std::string&& message)
+ : Exception(std::move(throwpoint), std::move(message))
{
- category = timeout_error;
}
};
+XBT_ATTRIB_DEPRECATED_v328("Please use simgrid::TimeoutException") typedef TimeoutException TimeoutError;
+
/** Exception raised when a host fails */
-class HostFailureException : public xbt_ex {
+class HostFailureException : public Exception {
public:
HostFailureException(simgrid::xbt::ThrowPoint&& throwpoint, std::string&& message)
- : xbt_ex(std::move(throwpoint), std::move(message))
+ : Exception(std::move(throwpoint), std::move(message))
{
- category = host_error;
}
};
/** Exception raised when a communication fails because of the network or because of the remote host */
-class NetworkFailureException : public xbt_ex {
+class NetworkFailureException : public Exception {
public:
NetworkFailureException(simgrid::xbt::ThrowPoint&& throwpoint, std::string&& message)
- : xbt_ex(std::move(throwpoint), std::move(message))
+ : Exception(std::move(throwpoint), std::move(message))
{
- category = network_error;
}
};
/** Exception raised when a storage fails */
-class StorageFailureException : public xbt_ex {
+class StorageFailureException : public Exception {
public:
StorageFailureException(simgrid::xbt::ThrowPoint&& throwpoint, std::string&& message)
- : xbt_ex(std::move(throwpoint), std::move(message))
+ : Exception(std::move(throwpoint), std::move(message))
+ {
+ }
+};
+
+/** Exception raised when a VM fails */
+class VmFailureException : public Exception {
+public:
+ VmFailureException(simgrid::xbt::ThrowPoint&& throwpoint, std::string&& message)
+ : Exception(std::move(throwpoint), std::move(message))
{
- category = io_error;
}
};
/** Exception raised when something got canceled before completion */
-class CancelException : public xbt_ex {
+class CancelException : public Exception {
public:
CancelException(simgrid::xbt::ThrowPoint&& throwpoint, std::string&& message)
- : xbt_ex(std::move(throwpoint), std::move(message))
+ : Exception(std::move(throwpoint), std::move(message))
{
- category = cancel_error;
}
};
+/** Exception raised when something is going wrong during the simulation tracing */
+class TracingError : public Exception {
+public:
+ TracingError(simgrid::xbt::ThrowPoint&& throwpoint, std::string&& message)
+ : Exception(std::move(throwpoint), std::move(message))
+ {
+ }
+};
+
+class XBT_PUBLIC ForcefulKillException {
+ /** @brief Exception launched to kill an actor; DO NOT BLOCK IT!
+ *
+ * This exception is thrown whenever the actor's host is turned off. The actor stack is properly unwinded to release
+ * all objects allocated on the stack (RAII powa).
+ *
+ * You may want to catch this exception to perform some extra cleanups in your simulation, but YOUR ACTORS MUST NEVER
+ * SURVIVE a ForcefulKillException, or your simulation will segfault.
+ *
+ * @verbatim
+ * void* payload = malloc(512);
+ *
+ * try {
+ * simgrid::s4u::this_actor::execute(100000);
+ * } catch (simgrid::kernel::context::ForcefulKillException& e) { // oops, my host just turned off
+ * free(malloc);
+ * throw; // I shall never survive on an host that was switched off
+ * }
+ * @endverbatim
+ */
+ /* Nope, Sonar, this should not inherit of std::exception nor of simgrid::Exception.
+ * Otherwise, users may accidentally catch it with a try {} catch (std::exception)
+ */
+public:
+ ForcefulKillException() = default;
+ explicit ForcefulKillException(const std::string& msg) : msg_(std::string("Actor killed (") + msg + std::string(")."))
+ {
+ }
+ ~ForcefulKillException();
+ const char* what() const noexcept { return msg_.c_str(); }
+
+ XBT_ATTRIB_NORETURN static void do_throw();
+ static bool try_n_catch(const std::function<void()>& try_block);
+
+private:
+ std::string msg_ = std::string("Actor killed.");
+};
+
} // namespace simgrid
+XBT_ATTRIB_DEPRECATED_v328("Please use simgrid::Exception") typedef simgrid::Exception xbt_ex;
+
#endif
