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Sun Sep 19 16:17:45 2010 UTC (14 years, 6 months ago) by amb
Original Path: trunk/src/files.h
File MIME type: text/x-chdr
File size: 3198 byte(s)
Sun Sep 19 16:17:45 2010 UTC (14 years, 6 months ago) by amb
Original Path: trunk/src/files.h
File MIME type: text/x-chdr
File size: 3198 byte(s)
Change the names of the functions used to open files, change the ReOpen function to open R/W.
1 | /*************************************** |
2 | $Header: /home/amb/CVS/routino/src/files.h,v 1.2 2010-09-19 16:17:45 amb Exp $ |
3 | |
4 | Header file for file function prototypes |
5 | |
6 | Part of the Routino routing software. |
7 | ******************/ /****************** |
8 | This file Copyright 2008-2010 Andrew M. Bishop |
9 | |
10 | This program is free software: you can redistribute it and/or modify |
11 | it under the terms of the GNU Affero General Public License as published by |
12 | the Free Software Foundation, either version 3 of the License, or |
13 | (at your option) any later version. |
14 | |
15 | This program is distributed in the hope that it will be useful, |
16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
18 | GNU Affero General Public License for more details. |
19 | |
20 | You should have received a copy of the GNU Affero General Public License |
21 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
22 | ***************************************/ |
23 | |
24 | |
25 | #ifndef FILES_H |
26 | #define FILES_H /*+ To stop multiple inclusions. +*/ |
27 | |
28 | #include <unistd.h> |
29 | #include <sys/types.h> |
30 | |
31 | |
32 | /* In files.c */ |
33 | |
34 | char *FileName(const char *dirname,const char *prefix, const char *name); |
35 | |
36 | void *MapFile(const char *filename); |
37 | void *UnmapFile(const char *filename); |
38 | |
39 | int OpenFileNew(const char *filename); |
40 | int OpenFileAppend(const char *filename); |
41 | int ReOpenFile(const char *filename); |
42 | |
43 | static int WriteFile(int fd,const void *address,size_t length); |
44 | static int ReadFile(int fd,void *address,size_t length); |
45 | |
46 | off_t SizeFile(const char *filename); |
47 | int ExistsFile(const char *filename); |
48 | |
49 | static int SeekFile(int fd,off_t position); |
50 | |
51 | void CloseFile(int fd); |
52 | |
53 | int DeleteFile(char *filename); |
54 | |
55 | |
56 | /* Inline the frequently called functions */ |
57 | |
58 | /*++++++++++++++++++++++++++++++++++++++ |
59 | Write data to a file on disk. |
60 | |
61 | int WriteFile Returns 0 if OK or something else in case of an error. |
62 | |
63 | int fd The file descriptor to write to. |
64 | |
65 | const void *address The address of the data to be written from. |
66 | |
67 | size_t length The length of data to write. |
68 | ++++++++++++++++++++++++++++++++++++++*/ |
69 | |
70 | static inline int WriteFile(int fd,const void *address,size_t length) |
71 | { |
72 | /* Write the data */ |
73 | |
74 | if(write(fd,address,length)!=length) |
75 | return(-1); |
76 | |
77 | return(0); |
78 | } |
79 | |
80 | |
81 | /*++++++++++++++++++++++++++++++++++++++ |
82 | Read data from a file on disk. |
83 | |
84 | int ReadFile Returns 0 if OK or something else in case of an error. |
85 | |
86 | int fd The file descriptor to read from. |
87 | |
88 | void *address The address of the data to be read into. |
89 | |
90 | size_t length The length of data to read. |
91 | ++++++++++++++++++++++++++++++++++++++*/ |
92 | |
93 | static inline int ReadFile(int fd,void *address,size_t length) |
94 | { |
95 | /* Read the data */ |
96 | |
97 | if(read(fd,address,length)!=length) |
98 | return(-1); |
99 | |
100 | return(0); |
101 | } |
102 | |
103 | |
104 | /*++++++++++++++++++++++++++++++++++++++ |
105 | Seek to a position in a file on disk. |
106 | |
107 | int SeekFile Returns 0 if OK or something else in case of an error. |
108 | |
109 | int fd The file descriptor to seek within. |
110 | |
111 | off_t position The position to seek to. |
112 | ++++++++++++++++++++++++++++++++++++++*/ |
113 | |
114 | static inline int SeekFile(int fd,off_t position) |
115 | { |
116 | /* Seek the data */ |
117 | |
118 | if(lseek(fd,position,SEEK_SET)!=position) |
119 | return(-1); |
120 | |
121 | return(0); |
122 | } |
123 | |
124 | |
125 | #endif /* FILES_H */ |
Properties
Name | Value |
---|---|
cvs:description | A new header file for files.c functions and includes some inline functions. |