Mercurial > lcfOS

annotate cos/kernel/fs.c @ 362:c05ab629976a

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added CPUID for arm
author Windel Bouwman
date Sat, 15 Mar 2014 10:56:34 +0100
parents 3a6a9b929db0
children
rev   line source
32
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
1
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
2 #include "kernel.h"
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
3
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
4 uint64_t read_fs(fs_node_t *node, uint64_t offset, uint64_t size, uint8_t *buffer)
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
5 {
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
6 if (node->read != 0)
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
7 {
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
8 return node->read(node, offset, size, buffer);
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
9 }
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
10 else
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
11 {
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
12 return 0;
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
13 }
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
14 }
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
15
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
16 uint64_t write_fs(fs_node_t *node, uint64_t offset, uint64_t size, uint8_t *buffer)
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
17 {
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
18 if (node->write != 0)
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
19 {
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
20 return node->write(node, offset, size, buffer);
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
21 }
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
22 else
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
23 {
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
24 return 0;
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
25 }
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
26 }
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
27
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
28 void open_fs(fs_node_t *node)
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
29 {
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
30 if (node->open != 0)
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
31 {
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
32 node->open(node);
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
33 }
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
34 }
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
35
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
36 void close_fs(fs_node_t *node)
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
37 {
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
38 if (node->close != 0)
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
39 {
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
40 node->close(node);
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
41 }
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
42 }
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
43
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
44 // TODO: why not return an fs_node_t* ?
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
45 fs_dirent_t* readdir_fs(fs_node_t *node, int i)
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
46 {
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
47 if (node->readdir != 0)
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
48 {
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
49 return node->readdir(node, i);
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
50 }
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
51 else
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
52 {
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
53 return 0;
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
54 }
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
55 }
3a6a9b929db0 Added initial ramdisk and some virtual file system functions
windel
parents:
diff changeset
56