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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

# User Rev Content
1 schorsch 2.17 /* RCSid $Id: paths.h,v 2.16 2003/06/30 14:59:11 schorsch Exp $ */
2 greg 2.1 /*
3     * Definitions for paths on different machines
4 greg 2.9 */
5 schorsch 2.12 #ifndef _RAD_PATHS_H_
6     #define _RAD_PATHS_H_
7     #ifdef __cplusplus
8     extern "C" {
9     #endif
10 greg 2.1
11 schorsch 2.16 #include <stdio.h>
12 schorsch 2.13 #include <stdlib.h>
13     #include <string.h>
14 schorsch 2.17 #include <fcntl.h>
15     #include <sys/types.h>
16     #include <sys/stat.h>
17 schorsch 2.16
18 schorsch 2.13 #ifdef _WIN32
19 schorsch 2.14 #include <io.h>
20 greg 2.1
21 schorsch 2.14 #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 schorsch 2.17 /* 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 greg 2.4 extern char *fixargv0();
54 greg 2.1
55 schorsch 2.16 #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 schorsch 2.14 #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 schorsch 2.16 /* posix */
85    
86     /* this is defined as _PATH_DEVNULL in /usr/include/paths.h on Linux */
87     #define NULL_DEVICE "/dev/null"
88 schorsch 2.14 #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 greg 2.1
101 schorsch 2.14 #endif
102 greg 2.2 #endif
103    
104     #ifndef ISDIRSEP
105 schorsch 2.14 #define ISDIRSEP(c) ((c)==DIRSEP)
106 greg 2.2 #endif
107     #ifndef CASEDIRSEP
108 schorsch 2.14 #define CASEDIRSEP case DIRSEP
109 greg 2.1 #endif
110    
111 schorsch 2.13
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 schorsch 2.16 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 schorsch 2.13
131     /* Concatenate two strings, leaving exactly one DIRSEP in between */
132     extern char *append_filepath(char *s1, char *s2, size_t len);
133 schorsch 2.12
134    
135     #ifdef __cplusplus
136     }
137     #endif
138     #endif /* _RAD_PATHS_H_ */
139