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root/radiance/ray/src/common/paths.h
Revision: 2.18
Committed: Mon Jul 14 20:02:29 2003 UTC (20 years, 9 months ago) by schorsch
Content type: text/plain
Branch: MAIN
Changes since 2.17: +2 -1 lines
Log Message:
Moved some more platform dependencies to common header files.
Included a few necessary system headers.

File Contents

# User Rev Content
1 schorsch 2.18 /* RCSid $Id: paths.h,v 2.17 2003/07/03 22:41:44 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 schorsch 2.18 #include <direct.h> /* getcwd(), chdir(), etc. */
21 greg 2.1
22 schorsch 2.14 #define access _access
23     #define PATH_MAX _MAX_PATH
24     #define DIRSEP '/'
25     #define ISDIRSEP(c) ((c)=='/' || (c)=='\\')
26     #define ISABS(s) ((s)!=NULL \
27     && (s[0])!='\0' \
28     && ( ISDIRSEP(s[0]) \
29     || ( (s[1])!='\0' \
30     && (isupper(s[0])||islower(s[0])) \
31     && (s[1])==':')))
32     #define CASEDIRSEP case '/': case '\\'
33     #define PATHSEP ';'
34     #define CURDIR '.'
35     #define DEFAULT_TEMPDIRS {"C:/TMP", "C:/TEMP", ".", NULL}
36     #define TEMPLATE "rtXXXXXX"
37     #define TEMPLEN 8
38     #define ULIBVAR "RAYPATH"
39     #ifndef DEFPATH
40     #define DEFPATH ";c:/ray/lib"
41     #endif
42     /* <io.h> only does half the work for access() */
43     #ifndef F_OK
44     #define F_OK 00
45     #define X_OK 01
46     #define W_OK 02
47     #define R_OK 04
48     #endif
49 schorsch 2.17 /* to make the permissions user specific we'd need to use CreateFile() */
50     #ifndef S_IRUSR
51     #define S_IRUSR _S_IREAD
52     #define S_IWUSR _S_IWRITE
53     #endif
54 greg 2.4 extern char *fixargv0();
55 greg 2.1
56 schorsch 2.16 #else /* everything but Windows */
57     #include <unistd.h>
58     #include <sys/param.h>
59    
60     #define RMAX_PATH_MAX 4096 /* our own maximum */
61     #ifndef PATH_MAX
62     #define PATH_MAX 512
63     #elif PATH_MAX > RMAX_PATH_MAX /* the OS is exaggerating */
64     #undef PATH_MAX
65     #define PATH_MAX RMAX_PATH_MAX
66 schorsch 2.14 #endif
67    
68     #ifdef AMIGA
69    
70     #define DIRSEP '/'
71     #define ISABS(s) ((s)!=NULL && (ISDIRSEP(s[0])))
72     #define PATHSEP ';'
73     #define CURDIR '.'
74     #define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
75     #define TEMPLATE "/tmp/rtXXXXXX"
76     #define TEMPLEN 13
77     #define ULIBVAR "RAYPATH"
78     #ifndef DEFPATH
79     #define DEFPATH ";/ray/lib"
80     #endif
81     #define fixargv0(a0) (a0)
82    
83     #else
84    
85 schorsch 2.16 /* posix */
86    
87     /* this is defined as _PATH_DEVNULL in /usr/include/paths.h on Linux */
88     #define NULL_DEVICE "/dev/null"
89 schorsch 2.14 #define DIRSEP '/'
90     #define ISABS(s) ((s)!=NULL && (ISDIRSEP(s[0])))
91     #define PATHSEP ':'
92     #define CURDIR '.'
93     #define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
94     #define TEMPLATE "/usr/tmp/rtXXXXXX"
95     #define TEMPLEN 17
96     #define ULIBVAR "RAYPATH"
97     #ifndef DEFPATH
98     #define DEFPATH ":/usr/local/lib/ray"
99     #endif
100     #define fixargv0(a0) (a0)
101 greg 2.1
102 schorsch 2.14 #endif
103 greg 2.2 #endif
104    
105     #ifndef ISDIRSEP
106 schorsch 2.14 #define ISDIRSEP(c) ((c)==DIRSEP)
107 greg 2.2 #endif
108     #ifndef CASEDIRSEP
109 schorsch 2.14 #define CASEDIRSEP case DIRSEP
110 greg 2.1 #endif
111    
112 schorsch 2.13
113     /* Find a writeable directory for temporary files */
114     /* If s is NULL, we return a static string */
115     extern char *temp_directory(char *s, size_t len);
116    
117     /* Compose a *currently* unique name within a temporary directory */
118     /* If s is NULL, we return a static string */
119     /* If templ is NULL, we take our default template */
120     /* WARNING: On Windows, there's a maximum of 27 unique names within
121     one process for the same template. */
122     extern char *temp_filename(char *s, size_t len, char *templ);
123    
124     /* Same as above, but also open the file and return the descriptor */
125     /* This one is supposed to protect against race conditions on unix */
126     /* WARNING: On Windows, there's no protection against race conditions */
127 schorsch 2.16 extern int temp_fd(char *s, size_t len, char *templ);
128    
129     /* Same as above, but return a file pointer instead of a descriptor */
130     extern FILE *temp_fp(char *s, size_t len, char *templ);
131 schorsch 2.13
132     /* Concatenate two strings, leaving exactly one DIRSEP in between */
133     extern char *append_filepath(char *s1, char *s2, size_t len);
134 schorsch 2.12
135    
136     #ifdef __cplusplus
137     }
138     #endif
139     #endif /* _RAD_PATHS_H_ */
140