51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
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#include "fs.h"
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fs_node_t *fs_root = 0; // Initialize the root of the filesystem
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uint32_t read_fs(fs_node_t *node, uint32_t offset, uint32_t size, uint8_t *buffer) {
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// Check if inode got a read callback from the kernel
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if(node->read != 0)
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return node->read(node, offset, size, buffer);
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else
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return 0;
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}
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uint32_t write_fs(fs_node_t *node, uint32_t offset, uint32_t size, uint8_t *buffer) {
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// Check if inode got a write callback from the kernel
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if(node->write != 0)
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return node->write(node, offset, size, buffer);
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else
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return 0;
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}
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void open_fs(fs_node_t *node, uint8_t read, uint8_t write) {
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// Check if inode got a open callback from the kernel
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if(node->open != 0)
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return node->open(node);
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else
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return 0;
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}
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void close_fs(fs_node_t *node) {
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// Check if inode got a close callback from the kernel
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if(node->close =! 0)
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return node->close(node);
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else
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return 0;
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}
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struct dirent *readdir_fs(fs_node_t *node, uint32_t index) {
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// Read dir content(only if file descriptor is FS_DIRECTORY)
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if((node->flags&0x7) == FS_DIRECTORY && node->readdir != 0)
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return node->readdir(node, index);
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else
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return 0;
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}
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fs_node_t *finddir_fs(fs_node_t *node, char *name) {
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// Check if an inode is a directory
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if((node->flags&0x7) == FS_DIRECTORY && node->finddir != 0)
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return node->finddir(node, name);
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else
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return 0;
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}
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