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39 * Declares fatal error handling and debugging routines for C code.
42 * \ingroup module_utility
44 #ifndef GMX_UTILITY_FATALERROR_H
45 #define GMX_UTILITY_FATALERROR_H
49 #include "../legacyheaders/types/simple.h"
56 /** For compatibility with non-clang compilers. */
57 #define __has_feature(x) 0
60 /*! \def GMX_ATTRIBUTE_NORETURN
62 * Indicate that a function is not expected to return.
65 * There are functions outside this header that need the same attribute.
66 * This could be moved to a generic header and made it affect also compiler
69 #ifndef GMX_ATTRIBUTE_NORETURN
70 #if __has_feature(attribute_analyzer_noreturn)
71 #define GMX_ATTRIBUTE_NORETURN __attribute__((analyzer_noreturn))
73 #define GMX_ATTRIBUTE_NORETURN
77 /** Implementation for where(). */
79 _where(const char *file, int line);
80 /** Prints filename and line to stdlog. */
81 #define where() _where(__FILE__, __LINE__)
84 * Fatal error reporting routine for \Gromacs.
86 * This function prints a fatal error message with a header that contains the
87 * source file and line number of the call, followed by the string specified by
88 * \p fmt and supplied parameters.
89 * If \p fatal_errno is 0, only the message and arguments are printed.
90 * If \p fatal_errno is a legal system errno or -1, a perror()-like message is
91 * printed after the first message; if fatal_errno is -1, the last system errno
93 * The format of \p fmt uses printf()-like formatting.
95 * In case all MPI processes want to stop with the same fatal error,
96 * use gmx_fatal_collective(), declared in gmx_fatal_collective.h,
97 * to avoid having as many error messages as processes.
99 * The first three parameters can be provided through ::FARGS:
101 gmx_fatal(FARGS, fmt, ...);
105 gmx_fatal(int fatal_errno, const char *file, int line, const char *fmt, ...) GMX_ATTRIBUTE_NORETURN;
106 /** Helper macro to pass first three parameters to gmx_fatal(). */
107 #define FARGS 0, __FILE__, __LINE__
109 /** Sets the log file for printing error messages. */
111 gmx_fatal_set_log_file(FILE *fp);
116 * Functions can write to this file for debug info.
117 * Before writing to it, it should be checked whether the file is not NULL:
121 fprintf(debug, "%s", "Debug text");
126 /** Whether extra debugging is enabled. */
127 extern gmx_bool gmx_debug_at;
129 /** Initializes debugging variables */
130 void init_debug(const int dbglevel, const char *dbgfile);
132 /** Returns TRUE when the program was started in debug mode */
133 gmx_bool bDebugMode(void);
136 * Implementation for range_check() and range_check_mesg().
138 * \p warn_str can be NULL.
140 void _range_check(int n, int n_min, int n_max, const char *warn_str,
142 const char *file, int line);
145 * Checks that a variable is within a range.
147 * If \p n is not in range [n_min, n_max), a fatal error is raised.
148 * \p n_min is inclusive, but \p n_max is not.
150 #define range_check_mesg(n, n_min, n_max, str) _range_check(n, n_min, n_max, str,#n, __FILE__, __LINE__)
153 * Checks that a variable is within a range.
155 * This works as range_check_mesg(), but with a default error message.
157 #define range_check(n, n_min, n_max) _range_check(n, n_min, n_max, NULL,#n, __FILE__, __LINE__)
160 * Returns error message corresponding to a string key.
162 * This maps the strings used by gmx_error() to actual error messages.
163 * Caller is responsible of freeing the returned string.
165 char *gmx_strerror(const char *key);
167 /** Implementation for gmx_error(). */
168 void _gmx_error(const char *key, const char *msg, const char *file, int line) GMX_ATTRIBUTE_NORETURN;
170 * Alternative fatal error routine with canned messages.
172 * This works as gmx_fatal(), except that a generic error message is added
173 * based on a string key, and printf-style formatting is not supported.
174 * Should not typically be called directly, but through gmx_bug(), gmx_call()
177 #define gmx_error(key, msg) _gmx_error(key, msg, __FILE__, __LINE__)
179 /*! \name Fatal error routines for certain types of errors
181 * These wrap gmx_error() and provide the \p key parameter as one of the
182 * recognized strings.
185 #define gmx_bug(msg) gmx_error("bug", msg)
186 #define gmx_call(msg) gmx_error("call", msg)
187 #define gmx_comm(msg) gmx_error("comm", msg)
188 #define gmx_file(msg) gmx_error("file", msg)
189 #define gmx_cmd(msg) gmx_error("cmd", msg)
190 #define gmx_impl(msg) gmx_error("impl", msg)
191 #define gmx_incons(msg) gmx_error("incons", msg)
192 #define gmx_input(msg) gmx_error("input", msg)
193 #define gmx_mem(msg) gmx_error("mem", msg)
194 #define gmx_open(fn) gmx_error("open", fn)
198 * Sets an error handler for gmx_fatal() and other fatal error routines.
200 * The default handler prints the message and aborts the program.
201 * If you set a custom handler, it must also abort the program, otherwise
202 * \Gromacs will behave unpredictably (most likely, it crashes shortly after
204 * The string passed to the handler may be a multi-line string.
209 set_gmx_error_handler(void (*func)(const char *msg));
212 * Prints a warning message to stderr.
214 * The format of \p fmt uses printf()-like formatting.
215 * The message string should NOT start with "WARNING"
216 * and should NOT end with a newline.
218 void gmx_warning(const char *fmt, ...);