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39 * Declares fatal error handling and debugging routines for C code.
48 #include "types/simple.h"
55 /** For compatibility with non-clang compilers. */
56 #define __has_feature(x) 0
59 /*! \def GMX_ATTRIBUTE_NORETURN
61 * Indicate that a function is not expected to return.
64 * There are functions outside this header that need the same attribute.
65 * This could be moved to a generic header and made it affect also compiler
68 #ifndef GMX_ATTRIBUTE_NORETURN
69 #if __has_feature(attribute_analyzer_noreturn)
70 #define GMX_ATTRIBUTE_NORETURN __attribute__((analyzer_noreturn))
72 #define GMX_ATTRIBUTE_NORETURN
76 /** Implementation for where(). */
78 _where(const char *file, int line);
79 /** Prints filename and line to stdlog. */
80 #define where() _where(__FILE__, __LINE__)
83 * Fatal error reporting routine for \Gromacs.
85 * This function prints a fatal error message with a header that contains the
86 * source file and line number of the call, followed by the string specified by
87 * \p fmt and supplied parameters.
88 * If \p fatal_errno is 0, only the message and arguments are printed.
89 * If \p fatal_errno is a legal system errno or -1, a perror()-like message is
90 * printed after the first message; if fatal_errno is -1, the last system errno
92 * The format of \p fmt uses printf()-like formatting.
94 * In case all MPI processes want to stop with the same fatal error,
95 * use gmx_fatal_collective(), declared in gmx_fatal_collective.h,
96 * to avoid having as many error messages as processes.
98 * The first three parameters can be provided through ::FARGS:
100 gmx_fatal(FARGS, fmt, ...);
104 gmx_fatal(int fatal_errno, const char *file, int line, const char *fmt, ...) GMX_ATTRIBUTE_NORETURN;
105 /** Helper macro to pass first three parameters to gmx_fatal(). */
106 #define FARGS 0, __FILE__, __LINE__
108 /** Sets the log file for printing error messages. */
110 gmx_fatal_set_log_file(FILE *fp);
115 * Functions can write to this file for debug info.
116 * Before writing to it, it should be checked whether the file is not NULL:
120 fprintf(debug, "%s", "Debug text");
125 /** Whether extra debugging is enabled. */
126 extern gmx_bool gmx_debug_at;
128 /** Initializes debugging variables */
129 void init_debug(const int dbglevel, const char *dbgfile);
131 /** Returns TRUE when the program was started in debug mode */
132 gmx_bool bDebugMode(void);
135 * Implementation for range_check() and range_check_mesg().
137 * \p warn_str can be NULL.
139 void _range_check(int n, int n_min, int n_max, const char *warn_str,
141 const char *file, int line);
144 * Checks that a variable is within a range.
146 * If \p n is not in range [n_min, n_max), a fatal error is raised.
147 * \p n_min is inclusive, but \p n_max is not.
149 #define range_check_mesg(n, n_min, n_max, str) _range_check(n, n_min, n_max, str,#n, __FILE__, __LINE__)
152 * Checks that a variable is within a range.
154 * This works as range_check_mesg(), but with a default error message.
156 #define range_check(n, n_min, n_max) _range_check(n, n_min, n_max, NULL,#n, __FILE__, __LINE__)
159 * Returns error message corresponding to a string key.
161 * This maps the strings used by gmx_error() to actual error messages.
162 * Caller is responsible of freeing the returned string.
164 char *gmx_strerror(const char *key);
166 /** Implementation for gmx_error(). */
167 void _gmx_error(const char *key, const char *msg, const char *file, int line) GMX_ATTRIBUTE_NORETURN;
169 * Alternative fatal error routine with canned messages.
171 * This works as gmx_fatal(), except that a generic error message is added
172 * based on a string key, and printf-style formatting is not supported.
173 * Should not typically be called directly, but through gmx_bug(), gmx_call()
176 #define gmx_error(key, msg) _gmx_error(key, msg, __FILE__, __LINE__)
178 /*! \name Fatal error routines for certain types of errors
180 * These wrap gmx_error() and provide the \p key parameter as one of the
181 * recognized strings.
184 #define gmx_bug(msg) gmx_error("bug", msg)
185 #define gmx_call(msg) gmx_error("call", msg)
186 #define gmx_comm(msg) gmx_error("comm", msg)
187 #define gmx_file(msg) gmx_error("file", msg)
188 #define gmx_cmd(msg) gmx_error("cmd", msg)
189 #define gmx_impl(msg) gmx_error("impl", msg)
190 #define gmx_incons(msg) gmx_error("incons", msg)
191 #define gmx_input(msg) gmx_error("input", msg)
192 #define gmx_mem(msg) gmx_error("mem", msg)
193 #define gmx_open(fn) gmx_error("open", fn)
197 * Sets an error handler for gmx_fatal() and other fatal error routines.
199 * The default handler prints the message and aborts the program.
200 * If you set a custom handler, it must also abort the program, otherwise
201 * \Gromacs will behave unpredictably (most likely, it crashes shortly after
203 * The string passed to the handler may be a multi-line string.
208 set_gmx_error_handler(void (*func)(const char *msg));
211 * Prints a warning message to stderr.
213 * The format of \p fmt uses printf()-like formatting.
214 * The message string should NOT start with "WARNING"
215 * and should NOT end with a newline.
217 void gmx_warning(const char *fmt, ...);