2 * This file is part of the GROMACS molecular simulation package.
4 * Copyright (c) 2011,2012,2013,2014, by the GROMACS development team, led by
5 * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
6 * and including many others, as listed in the AUTHORS file in the
7 * top-level source directory and at http://www.gromacs.org.
9 * GROMACS is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public License
11 * as published by the Free Software Foundation; either version 2.1
12 * of the License, or (at your option) any later version.
14 * GROMACS is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with GROMACS; if not, see
21 * http://www.gnu.org/licenses, or write to the Free Software Foundation,
22 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 * If you want to redistribute modifications to GROMACS, please
25 * consider that scientific software is very special. Version
26 * control is crucial - bugs must be traceable. We will be happy to
27 * consider code for inclusion in the official distribution, but
28 * derived work must not be called official GROMACS. Details are found
29 * in the README & COPYING files - if they are missing, get the
30 * official version at http://www.gromacs.org.
32 * To help us fund GROMACS development, we humbly ask that you cite
33 * the research papers on the package. Check out http://www.gromacs.org.
37 * Implements classes and functions in exceptions.h.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
40 * \ingroup module_utility
42 #include "exceptions.h"
54 #include <boost/exception/get_error_info.hpp>
55 #include <boost/shared_ptr.hpp>
57 #include "thread_mpi/system_error.h"
59 #include "gromacs/legacyheaders/network.h"
61 #include "gromacs/utility/errorcodes.h"
62 #include "gromacs/utility/gmxassert.h"
63 #include "gromacs/utility/stringutil.h"
65 #include "errorformat.h"
73 /********************************************************************
78 * Error message or error context text item.
80 * Error messages for an exception are represented as a chain of ErrorMessage
81 * objects: the elements at the bottom of the chain (with no children) is the
82 * error message, and other elements are the context strings added.
84 * \ingroup module_utility
90 * Creates an error message object with the specified text.
92 * \param[in] text Text for the message.
94 explicit ErrorMessage(const std::string &text);
96 //! Whether this object is a context string.
97 bool isContext() const { return static_cast<bool>(child_); }
98 //! Returns the text for this object.
99 const std::string &text() const { return text_; }
101 * Returns the child object for a context object.
103 * Must not be called if isContext() returns false.
105 const ErrorMessage &child() const
107 GMX_ASSERT(isContext(),
108 "Attempting to access nonexistent message object");
113 * Creates a new message object with context prepended.
115 * \param[in] context Context string to add.
116 * \returns New error message object that has \p context as its text
117 * and \c this as its child.
118 * \throws std::bad_alloc if out of memory.
120 ErrorMessage prependContext(const std::string &context) const;
124 boost::shared_ptr<ErrorMessage> child_;
128 * Stores a reason or the top-most context string of an exception.
130 * \ingroup module_utility
132 typedef boost::error_info<struct errinfo_message_, ErrorMessage>
135 ErrorMessage::ErrorMessage(const std::string &text)
138 size_t length = text_.find_last_not_of(" \n");
139 if (length == std::string::npos)
141 length = text_.length() - 1;
143 text_.resize(length + 1);
147 ErrorMessage::prependContext(const std::string &context) const
149 ErrorMessage newMessage(context);
150 newMessage.child_.reset(new ErrorMessage(*this));
155 * Stores list of nested exceptions for Gromacs exceptions.
157 * \ingroup module_utility
159 typedef boost::error_info<struct errinfo_message_, internal::NestedExceptionList>
160 errinfo_nested_exceptions;
164 /********************************************************************
168 GromacsException::GromacsException(const ExceptionInitializer &details)
170 *this << errinfo_message(ErrorMessage(details.reason_));
171 if (details.hasNestedExceptions())
173 *this << errinfo_nested_exceptions(details.nested_);
177 const char *GromacsException::what() const throw()
179 const ErrorMessage *msg = boost::get_error_info<errinfo_message>(*this);
180 while (msg != NULL && msg->isContext())
184 return msg != NULL ? msg->text().c_str() : "No reason provided";
187 void GromacsException::prependContext(const std::string &context)
189 const ErrorMessage *msg = boost::get_error_info<errinfo_message>(*this);
190 GMX_RELEASE_ASSERT(msg != NULL, "Message should always be set");
191 *this << errinfo_message(msg->prependContext(context));
194 /********************************************************************
195 * Derived exception classes
198 int FileIOError::errorCode() const
203 int InvalidInputError::errorCode() const
205 return eeInvalidInput;
208 int InconsistentInputError::errorCode() const
210 return eeInconsistentInput;
213 int SimulationInstabilityError::errorCode() const
215 return eeInstability;
218 int InternalError::errorCode() const
220 return eeInternalError;
223 int APIError::errorCode() const
228 int NotImplementedError::errorCode() const
230 return eeNotImplemented;
234 /********************************************************************
241 //! \addtogroup module_utility
245 * Abstracts actual output from the other logic in exception formatting.
247 * Object that implements this interface is passed to
248 * formatExceptionMessageInternal(), and is responsible for composing the
249 * output. This allows using the same implementation of interpreting the
250 * exceptions while still supporting output to different formats (e.g., to a
251 * string or to \c stderr).
253 class MessageWriterInterface
256 virtual ~MessageWriterInterface() {}
259 * Writes a single line of text into the output.
261 * \param[in] text Text to write on the line.
262 * \param[in] indent Suggested number of spaces to indent the line.
264 virtual void writeLine(const char *text, int indent) = 0;
266 * Writes information about a system error (errno-based).
268 * \param[in] errorNumber errno value
269 * \param[in] funcName Name of the system call (can be NULL).
270 * \param[in] indent Suggested number of spaces to indent the output.
272 virtual void writeErrNoInfo(int errorNumber, const char *funcName,
277 * Exception information writer for cases where exceptions should be avoided.
279 * Formats the messages into the provided FILE handle without checking for
280 * errors in std::fprintf() calls.
282 class MessageWriterFileNoThrow : public MessageWriterInterface
285 //! Initializes a writer that writes to the given file handle.
286 explicit MessageWriterFileNoThrow(FILE *fp) : fp_(fp) {}
288 virtual void writeLine(const char *text, int indent)
290 internal::printFatalErrorMessageLine(fp_, text, indent);
292 virtual void writeErrNoInfo(int errorNumber, const char *funcName,
295 std::fprintf(fp_, "%*sReason: %s\n", indent, "",
296 std::strerror(errorNumber));
297 if (funcName != NULL)
299 std::fprintf(fp_, "%*s(call to %s() returned error code %d)\n",
300 indent, "", funcName, errorNumber);
309 * Exception information writer to format into an std::string.
311 class MessageWriterString : public MessageWriterInterface
314 //! Post-processes the output string to not end in a line feed.
315 void removeTerminatingLineFeed()
317 if (result_.size() > 0U)
319 result_.erase(result_.size() - 1);
322 //! Returns the constructed string.
323 const std::string &result() const { return result_; }
325 virtual void writeLine(const char *text, int indent)
327 result_.append(indent, ' ');
328 result_.append(text);
329 result_.append("\n");
331 virtual void writeErrNoInfo(int errorNumber, const char *funcName,
334 writeLine(formatString("Reason: %s", std::strerror(errorNumber)).c_str(),
336 if (funcName != NULL)
338 writeLine(formatString("(call to %s() returned error code %d)",
339 funcName, errorNumber).c_str(),
349 * Prints error information for an exception object.
351 * \param[in] writer Writer to write out the information.
352 * \param[in] ex Exception object to print.
353 * \param[in] indent Indentation for the information.
355 * If the exception contains nested exceptions, information from them is
356 * recursively printed.
358 * Does not throw unless the writer throws.
360 void formatExceptionMessageInternal(MessageWriterInterface *writer,
361 const std::exception &ex, int indent)
363 const boost::exception *boostEx = dynamic_cast<const boost::exception *>(&ex);
366 // TODO: Add an option to print this information for the tests
367 // const char *const *funcPtr =
368 // boost::get_error_info<boost::throw_function>(*boostEx);
369 // const char *const *filePtr =
370 // boost::get_error_info<boost::throw_file>(*boostEx);
371 // const int *linePtr =
372 // boost::get_error_info<boost::throw_line>(*boostEx);
374 // std::string result;
375 // if (filePtr != NULL && linePtr != NULL)
377 // result = formatString("%s:%d: %s\n", *filePtr, *linePtr,
378 // funcPtr != NULL ? *funcPtr : "");
381 // TODO: Remove duplicate context if present in multiple nested exceptions.
382 const ErrorMessage *msg = boost::get_error_info<errinfo_message>(*boostEx);
385 while (msg != NULL && msg->isContext())
387 writer->writeLine(msg->text().c_str(), indent*2);
391 if (msg != NULL && !msg->text().empty())
393 writer->writeLine(msg->text().c_str(), indent*2);
398 writer->writeLine(ex.what(), indent*2);
401 const int *errorNumber
402 = boost::get_error_info<boost::errinfo_errno>(*boostEx);
403 if (errorNumber != NULL)
405 const char * const *funcName
406 = boost::get_error_info<boost::errinfo_api_function>(*boostEx);
407 writer->writeErrNoInfo(*errorNumber,
408 funcName != NULL ? *funcName : NULL,
412 // TODO: Treat also boost::nested_exception (not currently used, though)
414 const internal::NestedExceptionList *nested
415 = boost::get_error_info<errinfo_nested_exceptions>(*boostEx);
418 internal::NestedExceptionList::const_iterator ni;
419 for (ni = nested->begin(); ni != nested->end(); ++ni)
423 rethrow_exception(*ni);
425 catch (const std::exception &nestedEx)
427 formatExceptionMessageInternal(writer, nestedEx, indent + 1);
434 writer->writeLine(ex.what(), indent*2);
442 void printFatalErrorMessage(FILE *fp, const std::exception &ex)
444 const char *title = "Unknown exception";
445 bool bPrintType = false;
446 const GromacsException *gmxEx = dynamic_cast<const GromacsException *>(&ex);
447 // TODO: Treat more of the standard exceptions
450 title = getErrorCodeString(gmxEx->errorCode());
452 else if (dynamic_cast<const tMPI::system_error *>(&ex) != NULL)
454 title = "System error in thread synchronization";
456 else if (dynamic_cast<const std::bad_alloc *>(&ex) != NULL)
458 title = "Memory allocation failed";
460 else if (dynamic_cast<const std::logic_error *>(&ex) != NULL)
462 title = "Standard library logic error (bug)";
465 else if (dynamic_cast<const std::runtime_error *>(&ex) != NULL)
467 title = "Standard library runtime error (possible bug)";
474 // We can't call get_error_info directly on ex since our internal boost
475 // needs to be compiled with BOOST_NO_RTTI. So we do the dynamic_cast
477 const char *const *funcPtr = NULL;
478 const char *const *filePtr = NULL;
479 const int *linePtr = NULL;
480 const boost::exception *boostEx = dynamic_cast<const boost::exception *>(&ex);
483 funcPtr = boost::get_error_info<boost::throw_function>(*boostEx);
484 filePtr = boost::get_error_info<boost::throw_file>(*boostEx);
485 linePtr = boost::get_error_info<boost::throw_line>(*boostEx);
487 internal::printFatalErrorHeader(fp, title,
488 funcPtr != NULL ? *funcPtr : NULL,
489 filePtr != NULL ? *filePtr : NULL,
490 linePtr != NULL ? *linePtr : 0);
493 std::fprintf(fp, "(exception type: %s)\n", typeid(ex).name());
495 MessageWriterFileNoThrow writer(fp);
496 formatExceptionMessageInternal(&writer, ex, 0);
497 internal::printFatalErrorFooter(fp);
500 std::string formatExceptionMessageToString(const std::exception &ex)
502 MessageWriterString writer;
503 formatExceptionMessageInternal(&writer, ex, 0);
504 writer.removeTerminatingLineFeed();
505 return writer.result();
508 void formatExceptionMessageToFile(FILE *fp, const std::exception &ex)
510 MessageWriterFileNoThrow writer(fp);
511 formatExceptionMessageInternal(&writer, ex, 0);
514 int processExceptionAtExit(const std::exception & /*ex*/)
518 // TODO: Consider moving the output done in gmx_abort() into the message
519 // printing routine above, so that this could become a simple MPI_Abort().
520 gmx_abort(gmx_node_rank(), gmx_node_num(), returnCode);