src/gromacs/utility/fatalerror.cpp

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  37 #include "gmxpre.h"
  38
  39 #include "fatalerror.h"
  40
  41 #include "config.h"
  42
  43 #include <cerrno>
  44 #include <cstddef>
  45 #include <cstdlib>
  46 #include <cstring>
  47
  48 #include <exception>
  49
  50 #include "gromacs/utility/basedefinitions.h"
  51 #include "gromacs/utility/baseversion.h"
  52 #include "gromacs/utility/cstringutil.h"
  53 #include "gromacs/utility/futil.h"
  54 #include "gromacs/utility/mutex.h"
  55 #include "gromacs/utility/programcontext.h"
  56 #include "gromacs/utility/stringutil.h"
  57
  58 #include "errorcodes.h"
  59
  60 #if GMX_MPI
  61 #include "gromacs/utility/basenetwork.h"
  62 #include "gromacs/utility/gmxmpi.h"
  63 #endif
  64
  65 #include "errorformat.h"
  66
  67 static bool       bDebug         = false;
  68 static gmx::Mutex where_mutex;
  69
  70 FILE             *debug          = nullptr;
  71 gmx_bool          gmx_debug_at   = FALSE;
  72
  73 static FILE      *log_file       = nullptr;
  74 static gmx::Mutex error_mutex;
  75
  76 using Lock = gmx::lock_guard<gmx::Mutex>;
  77
  78 void gmx_init_debug(const int dbglevel, const char *dbgfile)
  79 {
  80     if (!bDebug)
  81     {
  82         gmx_disable_file_buffering();
  83         debug  = gmx_ffopen(dbgfile, "w+");
  84         bDebug = true;
  85         if (dbglevel >= 2)
  86         {
  87             gmx_debug_at = TRUE;
  88         }
  89     }
  90 }
  91
  92 gmx_bool bDebugMode()
  93 {
  94     return bDebug;
  95 }
  96
  97 void gmx_fatal_set_log_file(FILE *fp)
  98 {
  99     log_file = fp;
 100 }
 101
 102 static void default_error_handler(const char *title, const std::string &msg,
 103                                   const char *file, int line)
 104 {
 105     if (log_file)
 106     {
 107         gmx::internal::printFatalErrorHeader(log_file, title, nullptr, file, line);
 108         gmx::internal::printFatalErrorMessageLine(log_file, msg.c_str(), 0);
 109         gmx::internal::printFatalErrorFooter(log_file);
 110     }
 111     gmx::internal::printFatalErrorHeader(stderr, title, nullptr, file, line);
 112     gmx::internal::printFatalErrorMessageLine(stderr, msg.c_str(), 0);
 113     gmx::internal::printFatalErrorFooter(stderr);
 114 }
 115
 116 static gmx_error_handler_t gmx_error_handler = default_error_handler;
 117
 118 void gmx_set_error_handler(gmx_error_handler_t func)
 119 {
 120     Lock lock(error_mutex);
 121     gmx_error_handler = func;
 122 }
 123
 124 static const char *gmx_strerror(const char *key)
 125 {
 126     struct ErrorKeyEntry {
 127         const char *key;
 128         const char *msg;
 129     };
 130     ErrorKeyEntry map[] = {
 131         { "call",   "Routine should not have been called" },
 132         { "comm",   "Communication (parallel processing) problem" },
 133         { "fatal",  "Fatal error" },
 134         { "file",   "File input/output error" },
 135         { "impl",   "Implementation restriction" },
 136         { "incons", "Software inconsistency error" },
 137         { "input",  "Input error or input inconsistency" },
 138         { "mem",    "Memory allocation/freeing error" },
 139         { "open",   "Cannot open file" },
 140         { "range",  "Range checking error" }
 141     };
 142
 143     if (key == nullptr)
 144     {
 145         return "NULL error type (should not occur)";
 146     }
 147     for (const ErrorKeyEntry &entry : map)
 148     {
 149         if (std::strcmp(key, entry.key) == 0)
 150         {
 151             return entry.msg;
 152         }
 153     }
 154     return gmx::getErrorCodeString(gmx::eeUnknownError);
 155 }
 156
 157 static void call_error_handler(const char *key, const char *file, int line, const std::string &msg)
 158 {
 159     Lock lock(error_mutex);
 160     gmx_error_handler(gmx_strerror(key),
 161                       msg.empty() ? "Empty gmx_fatal message (bug)." : msg,
 162                       file, line);
 163 }
 164
 165 void gmx_exit_on_fatal_error(ExitType exitType, int returnValue)
 166 {
 167     if (log_file)
 168     {
 169         std::fflush(log_file);
 170     }
 171     if (debug)
 172     {
 173         std::fflush(debug);
 174     }
 175     std::fflush(stdout);
 176     std::fflush(stderr);
 177
 178 #if GMX_MPI
 179     if (gmx_mpi_initialized())
 180     {
 181         switch (exitType)
 182         {
 183             case ExitType_CleanExit:
 184                 MPI_Finalize();
 185                 break;
 186             case ExitType_Abort:
 187 #if GMX_LIB_MPI
 188                 gmx_abort(returnValue);
 189 #else
 190                 break;
 191 #endif
 192             case ExitType_NonMasterAbort:
 193                 // Let all other processes wait till the master has printed
 194                 // the error message and issued MPI_Abort.
 195                 MPI_Barrier(MPI_COMM_WORLD);
 196                 break;
 197         }
 198     }
 199 #endif
 200
 201     if (exitType == ExitType_CleanExit)
 202     {
 203         std::exit(returnValue);
 204     }
 205     // We cannot use std::exit() if other threads may still be executing, since that would cause destructors to be
 206     // called for global objects that may still be in use elsewhere.
 207     std::_Exit(returnValue);
 208 }
 209
 210 void gmx_fatal_mpi_va(int /*f_errno*/, const char *file, int line,
 211                       gmx_bool bMaster, gmx_bool bFinalize,
 212                       const char *fmt, va_list ap)
 213 {
 214     if (bMaster)
 215     {
 216         std::string msg = gmx::formatStringV(fmt, ap);
 217         call_error_handler("fatal", file, line, msg);
 218     }
 219
 220     ExitType exitType = ExitType_CleanExit;
 221     if (!bFinalize)
 222     {
 223         exitType = bMaster ? ExitType_Abort : ExitType_NonMasterAbort;
 224     }
 225     gmx_exit_on_fatal_error(exitType, 1);
 226 }
 227
 228 void gmx_fatal(int f_errno, const char *file, int line, gmx_fmtstr const char *fmt, ...)
 229 {
 230     va_list ap;
 231     va_start(ap, fmt);
 232     gmx_fatal_mpi_va(f_errno, file, line, TRUE, FALSE, fmt, ap);
 233     va_end(ap);
 234 }
 235
 236 void _gmx_error(const char *key, const std::string &msg, const char *file, int line)
 237 {
 238     call_error_handler(key, file, line, msg);
 239     gmx_exit_on_fatal_error(ExitType_Abort, 1);
 240 }
 241
 242 void _range_check(int n, int n_min, int n_max, const char *warn_str,
 243                   const char *var, const char *file, int line)
 244 {
 245     if ((n < n_min) || (n >= n_max))
 246     {
 247         std::string buf;
 248         if (warn_str != nullptr)
 249         {
 250             buf  = warn_str;
 251             buf += "\n";
 252         }
 253
 254         buf += gmx::formatString("Variable %s has value %d. It should have been "
 255                                  "within [ %d .. %d ]\n", var, n, n_min, n_max);
 256
 257         _gmx_error("range", buf, file, line);
 258     }
 259 }
 260
 261 void gmx_warning(gmx_fmtstr const char *fmt, ...)
 262 {
 263     va_list ap;
 264     char    msg[STRLEN];
 265
 266     va_start(ap, fmt);
 267     vsprintf(msg, fmt, ap);
 268     va_end(ap);
 269
 270     fprintf(stderr, "\nWARNING: %s\n\n", msg);
 271 }