ceph/src/boost/tools/build/src/engine/pathsys.h

   1 /*
   2  * Copyright 1993-2002 Christopher Seiwald and Perforce Software, Inc.
   3  *
   4  * This file is part of Jam - see jam.c for Copyright information.
   5  */
   6
   7 /*
   8  * pathsys.h - PATHNAME struct
   9  */
  10
  11 /*
  12  * PATHNAME - a name of a file, broken into <grist>dir/base/suffix(member)
  13  *
  14  * <grist> - salt to distinguish between targets that would otherwise have the
  15  * same name - it never appears in the bound name of a target.
  16  *
  17  * (member) - archive member name: the syntax is arbitrary, but must agree in
  18  * path_parse(), path_build() and the Jambase.
  19  */
  20
  21 #ifndef PATHSYS_VP_20020211_H
  22 #define PATHSYS_VP_20020211_H
  23
  24 #include "object.h"
  25 #include "strings.h"
  26
  27
  28 typedef struct _pathpart
  29 {
  30     char const * ptr;
  31     int len;
  32 } PATHPART;
  33
  34 typedef struct _pathname
  35 {
  36     PATHPART part[ 6 ];
  37
  38 #define f_grist   part[ 0 ]
  39 #define f_root    part[ 1 ]
  40 #define f_dir     part[ 2 ]
  41 #define f_base    part[ 3 ]
  42 #define f_suffix  part[ 4 ]
  43 #define f_member  part[ 5 ]
  44 } PATHNAME;
  45
  46
  47 void path_build( PATHNAME *, string * file );
  48 void path_parse( char const * file, PATHNAME * );
  49 void path_parent( PATHNAME * );
  50 int path_translate_to_os( char const *, string * file );
  51
  52 /* Given a path, returns an object containing an equivalent path in canonical
  53  * format that can be used as a unique key for that path. Equivalent paths such
  54  * as a/b, A\B, and a\B on NT all yield the same key.
  55  */
  56 OBJECT * path_as_key( OBJECT * path );
  57
  58 /* Called as an optimization when we know we have a path that is already in its
  59  * canonical/long/key form. Avoids the need for some subsequent path_as_key()
  60  * call to do a potentially expensive path conversion requiring access to the
  61  * actual underlying file system.
  62  */
  63 void path_register_key( OBJECT * canonic_path );
  64
  65 /* Returns a static pointer to the system dependent path to the temporary
  66  * directory. NOTE: Does *not* include a trailing path separator.
  67  */
  68 string const * path_tmpdir( void );
  69
  70 /* Returns a new temporary name. */
  71 OBJECT * path_tmpnam( void );
  72
  73 /* Returns a new temporary path. */
  74 OBJECT * path_tmpfile( void );
  75
  76 /* Give the first argument to 'main', return a full path to our executable.
  77  * Returns null in the unlikely case it cannot be determined. Caller is
  78  * responsible for freeing the string.
  79  *
  80  * Implemented in jam.c
  81  */
  82 char * executable_path( char const * argv0 );
  83
  84 void path_done( void );
  85
  86 #endif