| /* MPFR Logging functions. |
| |
| Copyright 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc. |
| Contributed by the Arenaire and Cacao projects, INRIA. |
| |
| This file is part of the GNU MPFR Library. |
| |
| The GNU MPFR Library is free software; you can redistribute it and/or modify |
| it under the terms of the GNU Lesser General Public License as published by |
| the Free Software Foundation; either version 2.1 of the License, or (at your |
| option) any later version. |
| |
| The GNU MPFR Library is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public |
| License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public License |
| along with the GNU MPFR Library; see the file COPYING.LIB. If not, write to |
| the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, |
| MA 02110-1301, USA. */ |
| |
| #include "mpfr-impl.h" |
| |
| /* Logging MPFR needs GCC >= 3.0 and GLIBC >= 2.0. */ |
| |
| #ifdef MPFR_USE_LOGGING |
| |
| /* Can't include them before (in particular, printf.h) */ |
| #include <stdlib.h> |
| #include <printf.h> |
| #include <stdarg.h> |
| #include <time.h> |
| |
| /* Define LOGGING variables */ |
| |
| FILE *mpfr_log_file; |
| int mpfr_log_type; |
| int mpfr_log_level; |
| int mpfr_log_base; |
| int mpfr_log_current; |
| int mpfr_log_worstcase_limit; |
| mp_prec_t mpfr_log_prec; |
| |
| static int |
| mpfr_printf_mpfr_print (FILE *stream, const struct printf_info *info, |
| const void * const *arg) |
| { |
| int length; |
| int org_type_logging; |
| |
| /* TODO: Use much more flag from info */ |
| mpfr_srcptr w = *((mpfr_srcptr *) (arg[0])); |
| mp_prec_t prec = mpfr_log_prec != 0 ? mpfr_log_prec |
| : info->width == -1 ? 0 : (mp_prec_t) info->width; |
| |
| org_type_logging = mpfr_log_type; |
| mpfr_log_type = 0; /* We disable the logging during this print! */ |
| if (info->alt) |
| length = fprintf (stream, "%lu", (unsigned long) MPFR_PREC (w)); |
| else |
| length = mpfr_out_str (stream, mpfr_log_base, prec, w, GMP_RNDN); |
| mpfr_log_type = org_type_logging; |
| |
| return length; |
| } |
| |
| static int |
| mpfr_printf_mpfr_arginfo (const struct printf_info *info, size_t n, |
| int *argtypes) |
| { |
| if (n > 0) |
| argtypes[0] = PA_POINTER; |
| return 1; |
| } |
| |
| static void mpfr_log_begin (void) __attribute__((constructor)); |
| |
| /* We let the system close the LOG itself |
| (Otherwise functions called by destructor can't use LOG File */ |
| static void |
| mpfr_log_begin (void) |
| { |
| const char *var; |
| time_t tt; |
| |
| /* Grab some information */ |
| var = getenv ("MPFR_LOG_BASE"); |
| mpfr_log_base = var == NULL || *var == 0 ? 10 : atoi (var); |
| |
| var = getenv ("MPFR_LOG_LEVEL"); |
| mpfr_log_level = var == NULL || *var == 0 ? 7 : atoi (var); |
| mpfr_log_current = 0; |
| |
| var = getenv ("MPFR_LOG_PREC"); |
| mpfr_log_prec = var == NULL || *var == 0 ? 0 : atol (var); |
| |
| /* Get what we need to log */ |
| mpfr_log_type = 0; |
| if (getenv ("MPFR_LOG_INPUT") != NULL) |
| mpfr_log_type |= MPFR_LOG_INPUT_F; |
| if (getenv ("MPFR_LOG_OUTPUT") != NULL) |
| mpfr_log_type |= MPFR_LOG_OUTPUT_F; |
| if (getenv ("MPFR_LOG_TIME") != NULL) |
| mpfr_log_type |= MPFR_LOG_TIME_F; |
| if (getenv ("MPFR_LOG_INTERNAL") != NULL) |
| mpfr_log_type |= MPFR_LOG_INTERNAL_F; |
| if (getenv ("MPFR_LOG_MSG") != NULL) |
| mpfr_log_type |= MPFR_LOG_MSG_F; |
| if (getenv ("MPFR_LOG_ZIV") != NULL) |
| mpfr_log_type |= MPFR_LOG_BADCASE_F; |
| if (getenv ("MPFR_LOG_STAT") != NULL) |
| mpfr_log_type |= MPFR_LOG_STAT_F; |
| if (getenv ("MPFR_LOG_ALL") != NULL) |
| mpfr_log_type = MPFR_LOG_INPUT_F|MPFR_LOG_OUTPUT_F|MPFR_LOG_TIME_F |
| |MPFR_LOG_INTERNAL_F|MPFR_LOG_MSG_F|MPFR_LOG_BADCASE_F|MPFR_LOG_STAT_F; |
| |
| /* Register printf functions */ |
| register_printf_function ('R', mpfr_printf_mpfr_print, |
| mpfr_printf_mpfr_arginfo); |
| |
| /* Open filename if needed */ |
| var = getenv ("MPFR_LOG_FILE"); |
| if (var == NULL || *var == 0) |
| var = "mpfr.log"; |
| if (mpfr_log_type != 0) |
| { |
| mpfr_log_file = fopen (var, "w"); |
| if (mpfr_log_file == NULL) |
| { |
| fprintf (stderr, "MPFR LOG: Can't open '%s' with w.\n", var); |
| abort (); |
| } |
| time (&tt); |
| fprintf (mpfr_log_file, "MPFR LOG FILE %s\n", ctime (&tt)); |
| } |
| } |
| |
| /* Return user CPU time measured in milliseconds. Thanks to Torbjorn. */ |
| |
| #if defined (ANSIONLY) || defined (USG) || defined (__SVR4) \ |
| || defined (_UNICOS) || defined(__hpux) |
| |
| int |
| mpfr_get_cputime (void) |
| { |
| return (int) ((unsigned long long) clock () * 1000 / CLOCKS_PER_SEC); |
| } |
| |
| #else /* Use getrusage for cputime */ |
| |
| #include <sys/types.h> |
| #include <sys/resource.h> |
| |
| int |
| mpfr_get_cputime (void) |
| { |
| struct rusage rus; |
| getrusage (0, &rus); |
| return rus.ru_utime.tv_sec * 1000 + rus.ru_utime.tv_usec / 1000; |
| } |
| |
| #endif /* cputime */ |
| |
| #endif /* MPFR_USE_LOGGING */ |