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root/radiance/ray/src/common/paths.h
Revision: 2.17
Committed: Thu Jul 3 22:41:44 2003 UTC (20 years, 10 months ago) by schorsch
Content type: text/plain
Branch: MAIN
Changes since 2.16: +9 -4 lines
Log Message:
Reduced compile problems on Windows.

File Contents

# Content
1 /* RCSid $Id: paths.h,v 2.16 2003/06/30 14:59:11 schorsch 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 #include <fcntl.h>
15 #include <sys/types.h>
16 #include <sys/stat.h>
17
18 #ifdef _WIN32
19 #include <io.h>
20
21 #define access _access
22 #define PATH_MAX _MAX_PATH
23 #define DIRSEP '/'
24 #define ISDIRSEP(c) ((c)=='/' || (c)=='\\')
25 #define ISABS(s) ((s)!=NULL \
26 && (s[0])!='\0' \
27 && ( ISDIRSEP(s[0]) \
28 || ( (s[1])!='\0' \
29 && (isupper(s[0])||islower(s[0])) \
30 && (s[1])==':')))
31 #define CASEDIRSEP case '/': case '\\'
32 #define PATHSEP ';'
33 #define CURDIR '.'
34 #define DEFAULT_TEMPDIRS {"C:/TMP", "C:/TEMP", ".", NULL}
35 #define TEMPLATE "rtXXXXXX"
36 #define TEMPLEN 8
37 #define ULIBVAR "RAYPATH"
38 #ifndef DEFPATH
39 #define DEFPATH ";c:/ray/lib"
40 #endif
41 /* <io.h> only does half the work for access() */
42 #ifndef F_OK
43 #define F_OK 00
44 #define X_OK 01
45 #define W_OK 02
46 #define R_OK 04
47 #endif
48 /* to make the permissions user specific we'd need to use CreateFile() */
49 #ifndef S_IRUSR
50 #define S_IRUSR _S_IREAD
51 #define S_IWUSR _S_IWRITE
52 #endif
53 extern char *fixargv0();
54
55 #else /* everything but Windows */
56 #include <unistd.h>
57 #include <sys/param.h>
58
59 #define RMAX_PATH_MAX 4096 /* our own maximum */
60 #ifndef PATH_MAX
61 #define PATH_MAX 512
62 #elif PATH_MAX > RMAX_PATH_MAX /* the OS is exaggerating */
63 #undef PATH_MAX
64 #define PATH_MAX RMAX_PATH_MAX
65 #endif
66
67 #ifdef AMIGA
68
69 #define DIRSEP '/'
70 #define ISABS(s) ((s)!=NULL && (ISDIRSEP(s[0])))
71 #define PATHSEP ';'
72 #define CURDIR '.'
73 #define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
74 #define TEMPLATE "/tmp/rtXXXXXX"
75 #define TEMPLEN 13
76 #define ULIBVAR "RAYPATH"
77 #ifndef DEFPATH
78 #define DEFPATH ";/ray/lib"
79 #endif
80 #define fixargv0(a0) (a0)
81
82 #else
83
84 /* posix */
85
86 /* this is defined as _PATH_DEVNULL in /usr/include/paths.h on Linux */
87 #define NULL_DEVICE "/dev/null"
88 #define DIRSEP '/'
89 #define ISABS(s) ((s)!=NULL && (ISDIRSEP(s[0])))
90 #define PATHSEP ':'
91 #define CURDIR '.'
92 #define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
93 #define TEMPLATE "/usr/tmp/rtXXXXXX"
94 #define TEMPLEN 17
95 #define ULIBVAR "RAYPATH"
96 #ifndef DEFPATH
97 #define DEFPATH ":/usr/local/lib/ray"
98 #endif
99 #define fixargv0(a0) (a0)
100
101 #endif
102 #endif
103
104 #ifndef ISDIRSEP
105 #define ISDIRSEP(c) ((c)==DIRSEP)
106 #endif
107 #ifndef CASEDIRSEP
108 #define CASEDIRSEP case DIRSEP
109 #endif
110
111
112 /* Find a writeable directory for temporary files */
113 /* If s is NULL, we return a static string */
114 extern char *temp_directory(char *s, size_t len);
115
116 /* Compose a *currently* unique name within a temporary directory */
117 /* If s is NULL, we return a static string */
118 /* If templ is NULL, we take our default template */
119 /* WARNING: On Windows, there's a maximum of 27 unique names within
120 one process for the same template. */
121 extern char *temp_filename(char *s, size_t len, char *templ);
122
123 /* Same as above, but also open the file and return the descriptor */
124 /* This one is supposed to protect against race conditions on unix */
125 /* WARNING: On Windows, there's no protection against race conditions */
126 extern int temp_fd(char *s, size_t len, char *templ);
127
128 /* Same as above, but return a file pointer instead of a descriptor */
129 extern FILE *temp_fp(char *s, size_t len, char *templ);
130
131 /* Concatenate two strings, leaving exactly one DIRSEP in between */
132 extern char *append_filepath(char *s1, char *s2, size_t len);
133
134
135 #ifdef __cplusplus
136 }
137 #endif
138 #endif /* _RAD_PATHS_H_ */
139