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root/radiance/ray/src/common/paths.h
Revision: 2.20
Committed: Tue Oct 21 19:19:28 2003 UTC (20 years, 5 months ago) by schorsch
Content type: text/plain
Branch: MAIN
CVS Tags: rad3R6, rad3R6P1
Changes since 2.19: +3 -1 lines
Log Message:
Various platform compatibility fixes.

File Contents

# Content
1 /* RCSid $Id: paths.h,v 2.19 2003/07/14 22:23:59 schorsch Exp $ */
2 /*
3 * Definitions for paths on different machines
4 */
5 #ifndef _RAD_PATHS_H_
6 #define _RAD_PATHS_H_
7
8 #include <stdio.h>
9 #include <stdlib.h>
10 #include <string.h>
11 #include <fcntl.h>
12 #include <sys/types.h>
13 #include <sys/stat.h>
14
15 #ifdef _WIN32
16 #include <io.h>
17 #include <direct.h> /* getcwd(), chdir(), etc. */
18
19 #define access _access
20 #define PATH_MAX _MAX_PATH
21 #define NULL_DEVICE "NUL"
22 #define DIRSEP '/'
23 #define ISDIRSEP(c) ((c)=='/' || (c)=='\\')
24 #define ISABS(s) ((s)!=NULL \
25 && (s[0])!='\0' \
26 && ( ISDIRSEP(s[0]) \
27 || ( (s[1])!='\0' \
28 && (isupper(s[0])||islower(s[0])) \
29 && (s[1])==':')))
30 #define CASEDIRSEP case '/': case '\\'
31 #define PATHSEP ';'
32 #define CURDIR '.'
33 #define DEFAULT_TEMPDIRS {"C:/TMP", "C:/TEMP", ".", NULL}
34 #define TEMPLATE "rtXXXXXX"
35 #define TEMPLEN 8
36 #define ULIBVAR "RAYPATH"
37 #ifndef DEFPATH
38 #define DEFPATH ";c:/ray/lib"
39 #endif
40 /* <io.h> only does half the work for access() */
41 #ifndef F_OK
42 #define F_OK 00
43 #define X_OK 01
44 #define W_OK 02
45 #define R_OK 04
46 #endif
47 /* to make the permissions user specific we'd need to use CreateFile() */
48 #ifndef S_IRUSR
49 #define S_IRUSR _S_IREAD
50 #define S_IWUSR _S_IWRITE
51 #endif
52
53 #ifdef __cplusplus
54 extern "C" {
55 #endif
56 extern char *fixargv0();
57 #ifdef __cplusplus
58 }
59 #endif
60
61 #else /* everything but Windows */
62 #include <unistd.h>
63 #include <sys/param.h>
64
65 #define RMAX_PATH_MAX 4096 /* our own maximum */
66 #ifndef PATH_MAX
67 #define PATH_MAX 512
68 #elif PATH_MAX > RMAX_PATH_MAX /* the OS is exaggerating */
69 #undef PATH_MAX
70 #define PATH_MAX RMAX_PATH_MAX
71 #endif
72
73 #ifdef AMIGA
74
75 #define NULL_DEVICE "NIL:"
76 #define DIRSEP '/'
77 #define ISABS(s) ((s)!=NULL && (ISDIRSEP(s[0])))
78 #define PATHSEP ';'
79 #define CURDIR '.'
80 #define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
81 #define TEMPLATE "/tmp/rtXXXXXX"
82 #define TEMPLEN 13
83 #define ULIBVAR "RAYPATH"
84 #ifndef DEFPATH
85 #define DEFPATH ";/ray/lib"
86 #endif
87 #define fixargv0(a0) (a0)
88
89 #else
90
91 /* posix */
92
93 /* this is defined as _PATH_DEVNULL in /usr/include/paths.h on Linux */
94 #define NULL_DEVICE "/dev/null"
95 #define DIRSEP '/'
96 #define ISABS(s) ((s)!=NULL && (ISDIRSEP(s[0])))
97 #define PATHSEP ':'
98 #define CURDIR '.'
99 #define DEFAULT_TEMPDIRS {"/var/tmp", "/usr/tmp", "/tmp", ".", NULL}
100 #define TEMPLATE "/usr/tmp/rtXXXXXX"
101 #define TEMPLEN 17
102 #define ULIBVAR "RAYPATH"
103 #ifndef DEFPATH
104 #define DEFPATH ":/usr/local/lib/ray"
105 #endif
106 #define fixargv0(a0) (a0)
107
108 #endif
109 #endif
110
111 #ifndef ISDIRSEP
112 #define ISDIRSEP(c) ((c)==DIRSEP)
113 #endif
114 #ifndef CASEDIRSEP
115 #define CASEDIRSEP case DIRSEP
116 #endif
117
118 #ifdef __cplusplus
119 extern "C" {
120 #endif
121
122 /* Find a writeable directory for temporary files */
123 /* If s is NULL, we return a static string */
124 extern char *temp_directory(char *s, size_t len);
125
126 /* Compose a *currently* unique name within a temporary directory */
127 /* If s is NULL, we return a static string */
128 /* If templ is NULL, we take our default template */
129 /* WARNING: On Windows, there's a maximum of 27 unique names within
130 one process for the same template. */
131 extern char *temp_filename(char *s, size_t len, char *templ);
132
133 /* Same as above, but also open the file and return the descriptor */
134 /* This one is supposed to protect against race conditions on unix */
135 /* WARNING: On Windows, there's no protection against race conditions */
136 extern int temp_fd(char *s, size_t len, char *templ);
137
138 /* Same as above, but return a file pointer instead of a descriptor */
139 extern FILE *temp_fp(char *s, size_t len, char *templ);
140
141 /* Concatenate two strings, leaving exactly one DIRSEP in between */
142 extern char *append_filepath(char *s1, char *s2, size_t len);
143
144
145 #ifdef __cplusplus
146 }
147 #endif
148 #endif /* _RAD_PATHS_H_ */
149