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Diffstat (limited to 'src/H5system.c')
-rw-r--r-- | src/H5system.c | 578 |
1 files changed, 578 insertions, 0 deletions
diff --git a/src/H5system.c b/src/H5system.c new file mode 100644 index 0000000..decef38 --- /dev/null +++ b/src/H5system.c @@ -0,0 +1,578 @@ +/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * + * Copyright by the Board of Trustees of the University of Illinois. * + * All rights reserved. * + * * + * This file is part of HDF5. The full HDF5 copyright notice, including * + * terms governing use, modification, and redistribution, is contained in * + * the files COPYING and Copyright.html. COPYING can be found at the root * + * of the source code distribution tree; Copyright.html can be found at the * + * root level of an installed copy of the electronic HDF5 document set and * + * is linked from the top-level documents page. It can also be found at * + * http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have * + * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. * + * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ + +/*------------------------------------------------------------------------- + * + * Created: H5system.c + * Aug 21 2006 + * Quincey Koziol <koziol@hdfgroup.org> + * + * Purpose: System call wrapper implementations. + * + *------------------------------------------------------------------------- + */ + +/****************/ +/* Module Setup */ +/****************/ + + +/***********/ +/* Headers */ +/***********/ +#include "H5private.h" /* Generic Functions */ +#include "H5Fprivate.h" /* File access */ + + +/****************/ +/* Local Macros */ +/****************/ + + +/******************/ +/* Local Typedefs */ +/******************/ + + +/********************/ +/* Package Typedefs */ +/********************/ + + +/********************/ +/* Local Prototypes */ +/********************/ + + +/*********************/ +/* Package Variables */ +/*********************/ + + +/*****************************/ +/* Library Private Variables */ +/*****************************/ + + +/*******************/ +/* Local Variables */ +/*******************/ + + +/*------------------------------------------------------------------------- + * Function: HDfprintf + * + * Purpose: Prints the optional arguments under the control of the format + * string FMT to the stream STREAM. This function takes the + * same format as fprintf(3c) with a few added features: + * + * The conversion modifier `H' refers to the size of an + * `hsize_t' or `hssize_t' type. For instance, "0x%018Hx" + * prints an `hsize_t' value as a hex number right justified and + * zero filled in an 18-character field. + * + * The conversion `a' refers to an `haddr_t' type. + * + * Return: Success: Number of characters printed + * + * Failure: -1 + * + * Programmer: Robb Matzke + * Thursday, April 9, 1998 + * + * Modifications: + * Robb Matzke, 1999-07-27 + * The `%a' format refers to an argument of `haddr_t' type + * instead of `haddr_t*' and the return value is correct. + *------------------------------------------------------------------------- + */ +int +HDfprintf(FILE *stream, const char *fmt, ...) +{ + int n=0, nout = 0; + int fwidth, prec; + int zerofill; + int leftjust; + int plussign; + int ldspace; + int prefix; + char modifier[8]; + int conv; + char *rest, format_templ[128]; + const char *s; + va_list ap; + + assert (stream); + assert (fmt); + + va_start (ap, fmt); + while (*fmt) { + fwidth = prec = 0; + zerofill = 0; + leftjust = 0; + plussign = 0; + prefix = 0; + ldspace = 0; + modifier[0] = '\0'; + + if ('%'==fmt[0] && '%'==fmt[1]) { + HDputc ('%', stream); + fmt += 2; + nout++; + } else if ('%'==fmt[0]) { + s = fmt + 1; + + /* Flags */ + while (HDstrchr ("-+ #", *s)) { + switch (*s) { + case '-': + leftjust = 1; + break; + case '+': + plussign = 1; + break; + case ' ': + ldspace = 1; + break; + case '#': + prefix = 1; + break; + } /*lint !e744 Switch statement doesn't _need_ default */ + s++; + } + + /* Field width */ + if (HDisdigit (*s)) { + zerofill = ('0'==*s); + fwidth = (int)HDstrtol (s, &rest, 10); + s = rest; + } else if ('*'==*s) { + fwidth = va_arg (ap, int); + if (fwidth<0) { + leftjust = 1; + fwidth = -fwidth; + } + s++; + } + + /* Precision */ + if ('.'==*s) { + s++; + if (HDisdigit (*s)) { + prec = (int)HDstrtol (s, &rest, 10); + s = rest; + } else if ('*'==*s) { + prec = va_arg (ap, int); + s++; + } + if (prec<1) prec = 1; + } + + /* Extra type modifiers */ + if (HDstrchr ("ZHhlqLI", *s)) { + switch (*s) { + /*lint --e{506} Don't issue warnings about constant value booleans */ + /*lint --e{774} Don't issue warnings boolean within 'if' always evaluates false/true */ + case 'H': + if (sizeof(hsize_t)<sizeof(long)) { + modifier[0] = '\0'; + } else if (sizeof(hsize_t)==sizeof(long)) { + HDstrcpy (modifier, "l"); + } else { + HDstrcpy (modifier, H5_PRINTF_LL_WIDTH); + } + break; + case 'Z': + if (sizeof(size_t)<sizeof(long)) { + modifier[0] = '\0'; + } else if (sizeof(size_t)==sizeof(long)) { + HDstrcpy (modifier, "l"); + } else { + HDstrcpy (modifier, H5_PRINTF_LL_WIDTH); + } + break; + default: + /* Handle 'I64' modifier for Microsoft's "__int64" type */ + if(*s=='I' && *(s+1)=='6' && *(s+2)=='4') { + modifier[0] = *s; + modifier[1] = *(s+1); + modifier[2] = *(s+2); + modifier[3] = '\0'; + s+=2; /* Increment over 'I6', the '4' is taken care of below */ + } /* end if */ + else { + /* Handle 'll' for long long types */ + if(*s=='l' && *(s+1)=='l') { + modifier[0] = *s; + modifier[1] = *s; + modifier[2] = '\0'; + s++; /* Increment over first 'l', second is taken care of below */ + } /* end if */ + else { + modifier[0] = *s; + modifier[1] = '\0'; + } /* end else */ + } /* end else */ + break; + } + s++; + } + + /* Conversion */ + conv = *s++; + + /* Create the format template */ + sprintf (format_templ, "%%%s%s%s%s%s", + leftjust?"-":"", plussign?"+":"", + ldspace?" ":"", prefix?"#":"", zerofill?"0":""); + if (fwidth>0) + sprintf (format_templ+HDstrlen(format_templ), "%d", fwidth); + if (prec>0) + sprintf (format_templ+HDstrlen(format_templ), ".%d", prec); + if (*modifier) + sprintf (format_templ+HDstrlen(format_templ), "%s", modifier); + sprintf (format_templ+HDstrlen(format_templ), "%c", conv); + + + /* Conversion */ + switch (conv) { + case 'd': + case 'i': + if (!HDstrcmp(modifier, "h")) { + short x = (short)va_arg (ap, int); + n = fprintf (stream, format_templ, x); + } else if (!*modifier) { + int x = va_arg (ap, int); + n = fprintf (stream, format_templ, x); + } else if (!HDstrcmp (modifier, "l")) { + long x = va_arg (ap, long); + n = fprintf (stream, format_templ, x); + } else { + int64_t x = va_arg(ap, int64_t); + n = fprintf (stream, format_templ, x); + } + break; + + case 'o': + case 'u': + case 'x': + case 'X': + if (!HDstrcmp (modifier, "h")) { + unsigned short x = (unsigned short)va_arg (ap, unsigned int); + n = fprintf (stream, format_templ, x); + } else if (!*modifier) { + unsigned int x = va_arg (ap, unsigned int); /*lint !e732 Loss of sign not really occuring */ + n = fprintf (stream, format_templ, x); + } else if (!HDstrcmp (modifier, "l")) { + unsigned long x = va_arg (ap, unsigned long); /*lint !e732 Loss of sign not really occuring */ + n = fprintf (stream, format_templ, x); + } else { + uint64_t x = va_arg(ap, uint64_t); /*lint !e732 Loss of sign not really occuring */ + n = fprintf (stream, format_templ, x); + } + break; + + case 'f': + case 'e': + case 'E': + case 'g': + case 'G': + if (!HDstrcmp (modifier, "h")) { + float x = (float) va_arg (ap, double); + n = fprintf (stream, format_templ, x); + } else if (!*modifier || !HDstrcmp (modifier, "l")) { + double x = va_arg (ap, double); + n = fprintf (stream, format_templ, x); + } else { + /* + * Some compilers complain when `long double' and + * `double' are the same thing. + */ +#if H5_SIZEOF_LONG_DOUBLE != H5_SIZEOF_DOUBLE + long double x = va_arg (ap, long double); + n = fprintf (stream, format_templ, x); +#else + double x = va_arg (ap, double); + n = fprintf (stream, format_templ, x); +#endif + } + break; + + case 'a': + { + haddr_t x = va_arg (ap, haddr_t); /*lint !e732 Loss of sign not really occuring */ + if (H5F_addr_defined(x)) { + sprintf(format_templ, "%%%s%s%s%s%s", + leftjust?"-":"", plussign?"+":"", + ldspace?" ":"", prefix?"#":"", + zerofill?"0":""); + if (fwidth>0) + sprintf(format_templ+HDstrlen(format_templ), "%d", fwidth); + + /*lint --e{506} Don't issue warnings about constant value booleans */ + /*lint --e{774} Don't issue warnings boolean within 'if' always evaluates false/true */ + if (sizeof(x)==H5_SIZEOF_INT) { + HDstrcat(format_templ, "u"); + } else if (sizeof(x)==H5_SIZEOF_LONG) { + HDstrcat(format_templ, "lu"); + } else if (sizeof(x)==H5_SIZEOF_LONG_LONG) { + HDstrcat(format_templ, H5_PRINTF_LL_WIDTH); + HDstrcat(format_templ, "u"); + } + n = fprintf(stream, format_templ, x); + } else { + HDstrcpy(format_templ, "%"); + if (leftjust) + HDstrcat(format_templ, "-"); + if (fwidth) + sprintf(format_templ+HDstrlen(format_templ), "%d", fwidth); + HDstrcat(format_templ, "s"); + fprintf(stream, format_templ, "UNDEF"); + } + } + break; + + case 'c': + { + char x = (char)va_arg (ap, int); + n = fprintf (stream, format_templ, x); + } + break; + + case 's': + case 'p': + { + char *x = va_arg (ap, char*); /*lint !e64 Type mismatch not really occuring */ + n = fprintf (stream, format_templ, x); + } + break; + + case 'n': + format_templ[HDstrlen(format_templ)-1] = 'u'; + n = fprintf (stream, format_templ, nout); + break; + + case 't': + { + htri_t tri_var = va_arg (ap, htri_t); + if (tri_var > 0) fprintf (stream, "TRUE"); + else if (!tri_var) fprintf (stream, "FALSE"); + else fprintf (stream, "FAIL(%d)", (int)tri_var); + } + break; + + default: + HDfputs (format_templ, stream); + n = (int)HDstrlen (format_templ); + break; + } + nout += n; + fmt = s; + } else { + HDputc (*fmt, stream); + fmt++; + nout++; + } + } + va_end (ap); + return nout; +} /* end HDfprintf() */ + + +/*------------------------------------------------------------------------- + * Function: HDstrtoll + * + * Purpose: Converts the string S to an int64_t value according to the + * given BASE, which must be between 2 and 36 inclusive, or be + * the special value zero. + * + * The string must begin with an arbitrary amount of white space + * (as determined by isspace(3c)) followed by a single optional + * `+' or `-' sign. If BASE is zero or 16 the string may then + * include a `0x' or `0X' prefix, and the number will be read in + * base 16; otherwise a zero BASE is taken as 10 (decimal) + * unless the next character is a `0', in which case it is taken + * as 8 (octal). + * + * The remainder of the string is converted to an int64_t in the + * obvious manner, stopping at the first character which is not + * a valid digit in the given base. (In bases above 10, the + * letter `A' in either upper or lower case represetns 10, `B' + * represents 11, and so forth, with `Z' representing 35.) + * + * If REST is not null, the address of the first invalid + * character in S is stored in *REST. If there were no digits + * at all, the original value of S is stored in *REST. Thus, if + * *S is not `\0' but **REST is `\0' on return the entire string + * was valid. + * + * Return: Success: The result. + * + * Failure: If the input string does not contain any + * digits then zero is returned and REST points + * to the original value of S. If an overflow + * or underflow occurs then the maximum or + * minimum possible value is returned and the + * global `errno' is set to ERANGE. If BASE is + * incorrect then zero is returned. + * + * Programmer: Robb Matzke + * Thursday, April 9, 1998 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +int64_t +HDstrtoll(const char *s, const char **rest, int base) +{ + int64_t sign=1, acc=0; + hbool_t overflow = FALSE; + + errno = 0; + if (!s || (base && (base<2 || base>36))) { + if (rest) *rest = s; + return 0; + } + + /* Skip white space */ + while (HDisspace (*s)) s++; + + /* Optional minus or plus sign */ + if ('+'==*s) { + s++; + } else if ('-'==*s) { + sign = -1; + s++; + } + + /* Zero base prefix */ + if (0==base && '0'==*s && ('x'==s[1] || 'X'==s[1])) { + base = 16; + s += 2; + } else if (0==base && '0'==*s) { + base = 8; + s++; + } else if (0==base) { + base = 10; + } + + /* Digits */ + while ((base<=10 && *s>='0' && *s<'0'+base) || + (base>10 && ((*s>='0' && *s<='9') || + (*s>='a' && *s<'a'+base-10) || + (*s>='A' && *s<'A'+base-10)))) { + if (!overflow) { + int64_t digit = 0; + if (*s>='0' && *s<='9') digit = *s - '0'; + else if (*s>='a' && *s<='z') digit = (*s-'a')+10; + else digit = (*s-'A')+10; + + if (acc*base+digit < acc) { + overflow = TRUE; + } else { + acc = acc*base + digit; + } + } + s++; + } + + /* Overflow */ + if (overflow) { + if (sign>0) { + acc = ((uint64_t)1<<(8*sizeof(int64_t)-1))-1; + } else { + acc = (uint64_t)1<<(8*sizeof(int64_t)-1); + } + errno = ERANGE; + } + + /* Return values */ + acc *= sign; + if (rest) *rest = s; + return acc; +} /* end HDstrtoll() */ + + +/*------------------------------------------------------------------------- + * Function: HDrand/HDsrand + * + * Purpose: Wrapper function for rand. If rand_r exists on this system, + * use it. + * + * Wrapper function for srand. If rand_r is available, it will keep + * track of the seed locally instead of using srand() which modifies + * global state and can break other programs. + * + * Return: Success: Random number from 0 to RAND_MAX + * + * Failure: Cannot fail. + * + * Programmer: Leon Arber + * March 6, 2006. + * + *------------------------------------------------------------------------- + */ +#ifdef H5_HAVE_RAND_R + +static unsigned int g_seed = 42; + +int HDrand(void) +{ + return rand_r(&g_seed); +} + +void HDsrand(unsigned int seed) +{ + g_seed = seed; +} +#endif + + +/*------------------------------------------------------------------------- + * Function: HDremove_all + * + * Purpose: Wrapper function for remove on VMS systems + * + * This function deletes all versions of a file + * + * Return: Success: 0; + * + * Failure: -1 + * + * Programmer: Elena Pourmal + * March 22, 2006 + * + *------------------------------------------------------------------------- + */ +#ifdef H5_VMS +int +HDremove_all(char *fname) +{ + int ret_value = -1; + char *_fname; + + _fname = H5MM_malloc(HDstrlen(fname) + 3); /* to accomodate ;* and null */ + if(_fname) { + HDstrcpy(_fname, fname); + HDstrcat(_fname,";*"); + HDremove(_fname); + H5MM_xfree(_fname); + ret_value = 0; + } + return ret_value; +} +#endif + + |