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root/radiance/ray/src/common/paths.h
Revision: 2.19
Committed: Mon Jul 14 22:23:59 2003 UTC (20 years, 9 months ago) by schorsch
Content type: text/plain
Branch: MAIN
Changes since 2.18: +12 -5 lines
Log Message:
Instrumented headers against multiple inclusion and for use from C++.
Moved includes in headers out of "C" scope.

File Contents

# User Rev Content
1 schorsch 2.19 /* RCSid $Id: paths.h,v 2.18 2003/07/14 20:02:29 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 greg 2.1
8 schorsch 2.16 #include <stdio.h>
9 schorsch 2.13 #include <stdlib.h>
10     #include <string.h>
11 schorsch 2.17 #include <fcntl.h>
12     #include <sys/types.h>
13     #include <sys/stat.h>
14 schorsch 2.16
15 schorsch 2.13 #ifdef _WIN32
16 schorsch 2.14 #include <io.h>
17 schorsch 2.18 #include <direct.h> /* getcwd(), chdir(), etc. */
18 greg 2.1
19 schorsch 2.14 #define access _access
20     #define PATH_MAX _MAX_PATH
21     #define DIRSEP '/'
22     #define ISDIRSEP(c) ((c)=='/' || (c)=='\\')
23     #define ISABS(s) ((s)!=NULL \
24     && (s[0])!='\0' \
25     && ( ISDIRSEP(s[0]) \
26     || ( (s[1])!='\0' \
27     && (isupper(s[0])||islower(s[0])) \
28     && (s[1])==':')))
29     #define CASEDIRSEP case '/': case '\\'
30     #define PATHSEP ';'
31     #define CURDIR '.'
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 schorsch 2.17 /* to make the permissions user specific we'd need to use CreateFile() */
47     #ifndef S_IRUSR
48     #define S_IRUSR _S_IREAD
49     #define S_IWUSR _S_IWRITE
50     #endif
51 schorsch 2.19
52     #ifdef __cplusplus
53     extern "C" {
54     #endif
55     extern char *fixargv0();
56     #ifdef __cplusplus
57     }
58     #endif
59 greg 2.1
60 schorsch 2.16 #else /* everything but Windows */
61     #include <unistd.h>
62     #include <sys/param.h>
63    
64     #define RMAX_PATH_MAX 4096 /* our own maximum */
65     #ifndef PATH_MAX
66     #define PATH_MAX 512
67     #elif PATH_MAX > RMAX_PATH_MAX /* the OS is exaggerating */
68     #undef PATH_MAX
69     #define PATH_MAX RMAX_PATH_MAX
70 schorsch 2.14 #endif
71    
72     #ifdef AMIGA
73    
74     #define DIRSEP '/'
75     #define ISABS(s) ((s)!=NULL && (ISDIRSEP(s[0])))
76     #define PATHSEP ';'
77     #define CURDIR '.'
78     #define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
79     #define TEMPLATE "/tmp/rtXXXXXX"
80     #define TEMPLEN 13
81     #define ULIBVAR "RAYPATH"
82     #ifndef DEFPATH
83     #define DEFPATH ";/ray/lib"
84     #endif
85     #define fixargv0(a0) (a0)
86    
87     #else
88    
89 schorsch 2.16 /* posix */
90    
91     /* this is defined as _PATH_DEVNULL in /usr/include/paths.h on Linux */
92     #define NULL_DEVICE "/dev/null"
93 schorsch 2.14 #define DIRSEP '/'
94     #define ISABS(s) ((s)!=NULL && (ISDIRSEP(s[0])))
95     #define PATHSEP ':'
96     #define CURDIR '.'
97     #define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
98     #define TEMPLATE "/usr/tmp/rtXXXXXX"
99     #define TEMPLEN 17
100     #define ULIBVAR "RAYPATH"
101     #ifndef DEFPATH
102     #define DEFPATH ":/usr/local/lib/ray"
103     #endif
104     #define fixargv0(a0) (a0)
105 greg 2.1
106 schorsch 2.14 #endif
107 greg 2.2 #endif
108    
109     #ifndef ISDIRSEP
110 schorsch 2.14 #define ISDIRSEP(c) ((c)==DIRSEP)
111 greg 2.2 #endif
112     #ifndef CASEDIRSEP
113 schorsch 2.14 #define CASEDIRSEP case DIRSEP
114 greg 2.1 #endif
115    
116 schorsch 2.19 #ifdef __cplusplus
117     extern "C" {
118     #endif
119 schorsch 2.13
120     /* Find a writeable directory for temporary files */
121     /* If s is NULL, we return a static string */
122     extern char *temp_directory(char *s, size_t len);
123    
124     /* Compose a *currently* unique name within a temporary directory */
125     /* If s is NULL, we return a static string */
126     /* If templ is NULL, we take our default template */
127     /* WARNING: On Windows, there's a maximum of 27 unique names within
128     one process for the same template. */
129     extern char *temp_filename(char *s, size_t len, char *templ);
130    
131     /* Same as above, but also open the file and return the descriptor */
132     /* This one is supposed to protect against race conditions on unix */
133     /* WARNING: On Windows, there's no protection against race conditions */
134 schorsch 2.16 extern int temp_fd(char *s, size_t len, char *templ);
135    
136     /* Same as above, but return a file pointer instead of a descriptor */
137     extern FILE *temp_fp(char *s, size_t len, char *templ);
138 schorsch 2.13
139     /* Concatenate two strings, leaving exactly one DIRSEP in between */
140     extern char *append_filepath(char *s1, char *s2, size_t len);
141 schorsch 2.12
142    
143     #ifdef __cplusplus
144     }
145     #endif
146     #endif /* _RAD_PATHS_H_ */
147