// Copyright (c) 2007-2012 Hartmut Kaiser // Copyright (c) 2011 Bryce Lelbach // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // // This example is documented in the Manual under the title "Error Handling" #include #include #include //[error_handling_raise_exception void raise_exception() { HPX_THROW_EXCEPTION(hpx::no_success, "raise_exception", "simulated error"); } HPX_PLAIN_ACTION(raise_exception, raise_exception_action); //] /////////////////////////////////////////////////////////////////////////////// int hpx_main() { { /////////////////////////////////////////////////////////////////////// // Error reporting using exceptions //[exception_diagnostic_information hpx::cout << "Error reporting using exceptions\n"; try { // invoke raise_exception() which throws an exception raise_exception_action do_it; do_it(hpx::find_here()); } catch (hpx::exception const& e) { // Print just the essential error information. hpx::cout << "caught exception: " << e.what() << "\n\n"; // Print all of the available diagnostic information as stored with // the exception. hpx::cout << "diagnostic information:" << hpx::diagnostic_information(e) << "\n"; } hpx::cout << hpx::flush; //] // Detailed error reporting using exceptions //[exception_diagnostic_elements hpx::cout << "Detailed error reporting using exceptions\n"; try { // Invoke raise_exception() which throws an exception. raise_exception_action do_it; do_it(hpx::find_here()); } catch (hpx::exception const& e) { // Print the elements of the diagnostic information separately. hpx::cout << "{what}: " << hpx::get_error_what(e) << "\n"; hpx::cout << "{locality-id}: " << hpx::get_error_locality_id(e) << "\n"; hpx::cout << "{hostname}: " << hpx::get_error_host_name(e) << "\n"; hpx::cout << "{pid}: " << hpx::get_error_process_id(e) << "\n"; hpx::cout << "{function}: " << hpx::get_error_function_name(e) << "\n"; hpx::cout << "{file}: " << hpx::get_error_file_name(e) << "\n"; hpx::cout << "{line}: " << hpx::get_error_line_number(e) << "\n"; hpx::cout << "{os-thread}: " << hpx::get_error_os_thread(e) << "\n"; hpx::cout << "{thread-id}: " << std::hex << hpx::get_error_thread_id(e) << "\n"; hpx::cout << "{thread-description}: " << hpx::get_error_thread_description(e) << "\n"; hpx::cout << "{state}: " << std::hex << hpx::get_error_state(e) << "\n"; hpx::cout << "{stack-trace}: " << hpx::get_error_backtrace(e) << "\n"; hpx::cout << "{env}: " << hpx::get_error_env(e) << "\n"; } hpx::cout << hpx::flush; //] /////////////////////////////////////////////////////////////////////// // Error reporting using error code { //[error_handling_diagnostic_information hpx::cout << "Error reporting using error code\n"; // Create a new error_code instance. hpx::error_code ec; // If an instance of an error_code is passed as the last argument while // invoking the action, the function will not throw in case of an error // but store the error information in this error_code instance instead. raise_exception_action do_it; do_it(hpx::find_here(), ec); if (ec) { // Print just the essential error information. hpx::cout << "returned error: " << ec.get_message() << "\n"; // Print all of the available diagnostic information as stored with // the exception. hpx::cout << "diagnostic information:" << hpx::diagnostic_information(ec) << "\n"; } hpx::cout << hpx::flush; //] } // Detailed error reporting using error code { //[error_handling_diagnostic_elements hpx::cout << "Detailed error reporting using error code\n"; // Create a new error_code instance. hpx::error_code ec; // If an instance of an error_code is passed as the last argument while // invoking the action, the function will not throw in case of an error // but store the error information in this error_code instance instead. raise_exception_action do_it; do_it(hpx::find_here(), ec); if (ec) { // Print the elements of the diagnostic information separately. hpx::cout << "{what}: " << hpx::get_error_what(ec) << "\n"; hpx::cout << "{locality-id}: " << hpx::get_error_locality_id(ec) << "\n"; hpx::cout << "{hostname}: " << hpx::get_error_host_name(ec) << "\n"; hpx::cout << "{pid}: " << hpx::get_error_process_id(ec) << "\n"; hpx::cout << "{function}: " << hpx::get_error_function_name(ec) << "\n"; hpx::cout << "{file}: " << hpx::get_error_file_name(ec) << "\n"; hpx::cout << "{line}: " << hpx::get_error_line_number(ec) << "\n"; hpx::cout << "{os-thread}: " << hpx::get_error_os_thread(ec) << "\n"; hpx::cout << "{thread-id}: " << std::hex << hpx::get_error_thread_id(ec) << "\n"; hpx::cout << "{thread-description}: " << hpx::get_error_thread_description(ec) << "\n\n"; hpx::cout << "{state}: " << std::hex << hpx::get_error_state(ec) << "\n"; hpx::cout << "{stack-trace}: " << hpx::get_error_backtrace(ec) << "\n"; hpx::cout << "{env}: " << hpx::get_error_env(ec) << "\n"; } hpx::cout << hpx::flush; //] } // Error reporting using lightweight error code { //[lightweight_error_handling_diagnostic_information hpx::cout << "Error reporting using an lightweight error code\n"; // Create a new error_code instance. hpx::error_code ec(hpx::lightweight); // If an instance of an error_code is passed as the last argument while // invoking the action, the function will not throw in case of an error // but store the error information in this error_code instance instead. raise_exception_action do_it; do_it(hpx::find_here(), ec); if (ec) { // Print just the essential error information. hpx::cout << "returned error: " << ec.get_message() << "\n"; // Print all of the available diagnostic information as stored with // the exception. hpx::cout << "error code:" << ec.value() << "\n"; } hpx::cout << hpx::flush; //] } } // Initiate shutdown of the runtime system. return hpx::finalize(); } /////////////////////////////////////////////////////////////////////////////// int main(int argc, char* argv[]) { return hpx::init(argc, argv); // Initialize and run HPX. }