Commited some old changes, idk what they were

2024-07-30 21:07:05 +02:00
parent 8e004221e1
commit 105076a8ce
14 changed files with 238 additions and 222 deletions
@@ -0,0 +1,52 @@
+#ifndef IMPL_H
+#define IMPL_H
+
+#include <disk/disk.h>
+#include <fs/fs.h>
+#include <memory/addresses.h>
+#include <stdint.h>
+#include <string.h>
+
+char* currentDir;
+inode_t currentDirINode;
+
+char tempSector[FS_SECTOR_SIZE];
+char tempBlock[FS_BLOCK_SIZE];
+
+inode_t rootINode;
+
+inode_t* getINode(char* path) {
+    dirEntry_t* dirEntry = (dirEntry_t*)SCRATCH_BLOCK_LOC;
+    while (dirEntry->name[0] != '\0') {
+        if (strcmp(dirEntry->name, path) == 0) break;
+        dirEntry++;
+    }
+
+    if (dirEntry->name[0] == '\0') return NULL;
+
+    inode_t* inode = (inode_t*)BOOT_FIRST_INODE_LOC;
+    while (inode->id != dirEntry->id) {
+        inode++;
+    }
+
+    return inode;
+}
+
+uint8_t loadFile(inode_t* inode, void* dest) {
+    uint32_t totalBlocks = bytesToBlocks(inode->sizeBytes);
+    uint32_t addressOffset = 0;
+
+    for (uint8_t i = 0; i < 4 && totalBlocks > 0; i++) {
+        diskRead(inode->extent[i].firstBlock * 8, inode->extent[i].length * 8, dest + addressOffset);
+        addressOffset += inode->extent[i].length * FS_BLOCK_SIZE;
+        totalBlocks -= inode->extent[i].length;
+    }
+
+    if (totalBlocks > 0) {
+        // TODO: Indirect extents
+    }
+
+    return 0;
+}
+
+#endif