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annotate cos/kernel/fs.c @ 220:3f6c30a5d234

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Major change in expression parsing to enable pointers and structs
author Windel Bouwman
date Sat, 06 Jul 2013 21:32:20 +0200
parents 3a6a9b929db0
children
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32
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1
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2 #include "kernel.h"
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4 uint64_t read_fs(fs_node_t *node, uint64_t offset, uint64_t size, uint8_t *buffer)
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5 {
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6 if (node->read != 0)
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7 {
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8 return node->read(node, offset, size, buffer);
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9 }
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10 else
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11 {
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12 return 0;
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13 }
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14 }
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16 uint64_t write_fs(fs_node_t *node, uint64_t offset, uint64_t size, uint8_t *buffer)
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17 {
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18 if (node->write != 0)
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19 {
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20 return node->write(node, offset, size, buffer);
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21 }
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22 else
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23 {
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24 return 0;
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25 }
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26 }
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28 void open_fs(fs_node_t *node)
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29 {
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30 if (node->open != 0)
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31 {
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32 node->open(node);
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33 }
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34 }
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35
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36 void close_fs(fs_node_t *node)
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37 {
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38 if (node->close != 0)
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39 {
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40 node->close(node);
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41 }
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42 }
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43
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44 // TODO: why not return an fs_node_t* ?
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45 fs_dirent_t* readdir_fs(fs_node_t *node, int i)
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46 {
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47 if (node->readdir != 0)
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48 {
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49 return node->readdir(node, i);
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50 }
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51 else
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52 {
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53 return 0;
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54 }
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55 }
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56