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root/radiance/ray/src/common/paths.h
Revision: 2.16
Committed: Mon Jun 30 14:59:11 2003 UTC (20 years, 10 months ago) by schorsch
Content type: text/plain
Branch: MAIN
Changes since 2.15: +24 -23 lines
Log Message:
Replaced most outdated BSD function calls with their posix equivalents, and cleaned up a few other platform dependencies.

File Contents

# Content
1 /* RCSid $Id: paths.h,v 2.15 2003/06/27 06:53:21 greg Exp $ */
2 /*
3 * Definitions for paths on different machines
4 */
5 #ifndef _RAD_PATHS_H_
6 #define _RAD_PATHS_H_
7 #ifdef __cplusplus
8 extern "C" {
9 #endif
10
11 #include <stdio.h>
12 #include <stdlib.h>
13 #include <string.h>
14
15 #ifdef _WIN32
16 #include <io.h>
17
18 #define access _access
19 #define PATH_MAX _MAX_PATH
20 #define DIRSEP '/'
21 #define ISDIRSEP(c) ((c)=='/' || (c)=='\\')
22 #define ISABS(s) ((s)!=NULL \
23 && (s[0])!='\0' \
24 && ( ISDIRSEP(s[0]) \
25 || ( (s[1])!='\0' \
26 && (isupper(s[0])||islower(s[0])) \
27 && (s[1])==':')))
28 #define CASEDIRSEP case '/': case '\\'
29 #define PATHSEP ';'
30 #define CURDIR '.'
31 /*#define MAXPATH 512*/ /* obsoleted by posix PATH_MAX */
32 #define DEFAULT_TEMPDIRS {"C:/TMP", "C:/TEMP", ".", NULL}
33 #define TEMPLATE "rtXXXXXX"
34 #define TEMPLEN 8
35 #define ULIBVAR "RAYPATH"
36 #ifndef DEFPATH
37 #define DEFPATH ";c:/ray/lib"
38 #endif
39 /* <io.h> only does half the work for access() */
40 #ifndef F_OK
41 #define F_OK 00
42 #define X_OK 01
43 #define W_OK 02
44 #define R_OK 04
45 #endif
46 extern char *fixargv0();
47
48 #else /* everything but Windows */
49 #include <unistd.h>
50 #include <sys/param.h>
51
52 #define RMAX_PATH_MAX 4096 /* our own maximum */
53 #ifndef PATH_MAX
54 #define PATH_MAX 512
55 #elif PATH_MAX > RMAX_PATH_MAX /* the OS is exaggerating */
56 #undef PATH_MAX
57 #define PATH_MAX RMAX_PATH_MAX
58 #endif
59
60 #ifdef AMIGA
61
62 #define DIRSEP '/'
63 #define ISABS(s) ((s)!=NULL && (ISDIRSEP(s[0])))
64 #define PATHSEP ';'
65 #define CURDIR '.'
66 /*#define MAXPATH 128*/ /* obsoleted by posix PATH_MAX */
67 #define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
68 #define TEMPLATE "/tmp/rtXXXXXX"
69 #define TEMPLEN 13
70 #define ULIBVAR "RAYPATH"
71 #ifndef DEFPATH
72 #define DEFPATH ";/ray/lib"
73 #endif
74 #define fixargv0(a0) (a0)
75
76 #else
77
78 /* posix */
79
80 /* this is defined as _PATH_DEVNULL in /usr/include/paths.h on Linux */
81 #define NULL_DEVICE "/dev/null"
82 #define DIRSEP '/'
83 #define ISABS(s) ((s)!=NULL && (ISDIRSEP(s[0])))
84 #define PATHSEP ':'
85 #define CURDIR '.'
86 /*#define MAXPATH 256*/ /* obsoleted by posix PATH_MAX */
87 #define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
88 #define TEMPLATE "/usr/tmp/rtXXXXXX"
89 #define TEMPLEN 17
90 #define ULIBVAR "RAYPATH"
91 #ifndef DEFPATH
92 #define DEFPATH ":/usr/local/lib/ray"
93 #endif
94 #define fixargv0(a0) (a0)
95
96 #endif
97 #endif
98
99 #ifndef ISDIRSEP
100 #define ISDIRSEP(c) ((c)==DIRSEP)
101 #endif
102 #ifndef CASEDIRSEP
103 #define CASEDIRSEP case DIRSEP
104 #endif
105
106
107 /* Find a writeable directory for temporary files */
108 /* If s is NULL, we return a static string */
109 extern char *temp_directory(char *s, size_t len);
110
111 /* Compose a *currently* unique name within a temporary directory */
112 /* If s is NULL, we return a static string */
113 /* If templ is NULL, we take our default template */
114 /* WARNING: On Windows, there's a maximum of 27 unique names within
115 one process for the same template. */
116 extern char *temp_filename(char *s, size_t len, char *templ);
117
118 /* Same as above, but also open the file and return the descriptor */
119 /* This one is supposed to protect against race conditions on unix */
120 /* WARNING: On Windows, there's no protection against race conditions */
121 extern int temp_fd(char *s, size_t len, char *templ);
122
123 /* Same as above, but return a file pointer instead of a descriptor */
124 extern FILE *temp_fp(char *s, size_t len, char *templ);
125
126 /* Concatenate two strings, leaving exactly one DIRSEP in between */
127 extern char *append_filepath(char *s1, char *s2, size_t len);
128
129
130 #ifdef __cplusplus
131 }
132 #endif
133 #endif /* _RAD_PATHS_H_ */
134