include/futil.h

   1 /*
   2  * $Id$
   3  *
   4  *                This source code is part of
   5  *
   6  *                 G   R   O   M   A   C   S
   7  *
   8  *          GROningen MAchine for Chemical Simulations
   9  *
  10  *                        VERSION 3.2.0
  11  * Written by David van der Spoel, Erik Lindahl, Berk Hess, and others.
  12  * Copyright (c) 1991-2000, University of Groningen, The Netherlands.
  13  * Copyright (c) 2001-2004, The GROMACS development team,
  14  * check out http://www.gromacs.org for more information.
  15
  16  * This program is free software; you can redistribute it and/or
  17  * modify it under the terms of the GNU General Public License
  18  * as published by the Free Software Foundation; either version 2
  19  * of the License, or (at your option) any later version.
  20  *
  21  * If you want to redistribute modifications, please consider that
  22  * scientific software is very special. Version control is crucial -
  23  * bugs must be traceable. We will be happy to consider code for
  24  * inclusion in the official distribution, but derived work must not
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  26  * files - if they are missing, get the official version at www.gromacs.org.
  27  *
  28  * To help us fund GROMACS development, we humbly ask that you cite
  29  * the papers on the package - you can find them in the top README file.
  30  *
  31  * For more info, check our website at http://www.gromacs.org
  32  *
  33  * And Hey:
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  35  */
  36
  37 #ifndef _futil_h
  38 #define _futil_h
  39
  40 #ifdef HAVE_CONFIG_H
  41 #include <config.h>
  42 #endif
  43
  44 #include <stdio.h>
  45 #include "typedefs.h"
  46
  47 /* Native windows uses backslash path separators.
  48  * Cygwin and everybody else in the world use slash.
  49  * When reading the PATH environment variable, Unix separates entries
  50  * with colon, while windows uses semicolon.
  51  */
  52 #if ((defined WIN32 || defined _WIN32 || defined WIN64 || defined _WIN64) && !defined __CYGWIN__ && !defined __CYGWIN32__)
  53 #define DIR_SEPARATOR '\\'
  54 #define PATH_SEPARATOR ";"
  55 #else
  56 #define DIR_SEPARATOR '/'
  57 #define PATH_SEPARATOR ":"
  58 #endif
  59
  60 #ifdef CPLUSPLUS
  61 extern "C" {
  62 #endif
  63
  64 extern void no_buffers(void);
  65 /* Turn off buffering of files (which is default) for debugging purposes */
  66
  67 extern bool fexist(const char *fname);
  68 /* Return TRUE when fname exists, FALSE otherwise */
  69
  70 extern bool eof(FILE *fp);
  71 /* Return TRUE on end-of-file, FALSE otherwise */
  72
  73 extern bool is_pipe(FILE *fp);
  74 /* Check whether the file (opened by ffopen) is a pipe */
  75
  76 extern char *backup_fn(const char *file);
  77 /* Return a backup name for file (name with # before and after) */
  78
  79 /*  Make a backup of file if necessary.
  80     Return false if there was a problem.
  81 */
  82 extern bool make_backup(const char * file);
  83
  84 extern FILE *ffopen(const char *file,char *mode);
  85 /* Return a valid file pointer when succesfull, exits otherwise
  86  * If the file is in compressed format, open a pipe which uncompresses
  87  * the file! Therefore, files must be closed with ffclose (see below)
  88  */
  89
  90 extern void ffclose(FILE *fp);
  91 /* Close files or pipes */
  92
  93
  94 extern void frewind(FILE *fp);
  95 /* Does not rewind pipes, but does so for normal files */
  96
  97 #define rewind frewind
  98
  99 bool is_pipe(FILE *fp);
 100
 101 extern const char *libfn(const char *file);
 102
 103 extern FILE *libopen(const char *file);
 104 /* Open a library file for reading. This looks in the current directory
 105  * first, and then in the library directory. If the file is not found,
 106  * it terminates with a fatal_error
 107  */
 108
 109 extern bool get_libdir(char *libdir);
 110
 111 extern const char *low_libfn(const char *file,bool bFatal);
 112
 113 extern FILE *low_libopen(const char *file,bool bFatal);
 114 /* The same as the above, but does not terminate if (!bFatal) */
 115
 116 /* Create unique name for temp file (wrapper around mkstemp).
 117  * Buf should be at least 7 bytes long
 118  */
 119 extern void gmx_tmpnam(char *buf);
 120
 121 #ifdef CPLUSPLUS
 122 }
 123 #endif
 124
 125 #endif  /* _futil_h */