Caleb Gardner
32 lines
796 B
Zig
32 lines
796 B
Zig
const std = @import("std");
|
|
const fs = std.fs;
|
|
|
|
const Superblock = @import("superblock.zig").Superblock;
|
|
const Inode = @import("inode.zig").Inode;
|
|
|
|
pub const Reader = struct {
|
|
super: Superblock,
|
|
rdr: fs.File,
|
|
root: Inode,
|
|
alloc: std.heap.GeneralPurposeAllocator(.{}),
|
|
|
|
pub fn close(self: Reader) void {
|
|
self.rdr.close();
|
|
self.alloc.deinit();
|
|
}
|
|
};
|
|
|
|
pub fn newReader(filename: []const u8) !Reader {
|
|
const file = try std.fs.cwd().openFile(filename, .{});
|
|
errdefer file.close();
|
|
const alloc = std.heap.GeneralPurposeAllocator(.{}).init();
|
|
errdefer alloc.deinit();
|
|
const super = try file.reader().readStruct(Superblock);
|
|
try super.valid();
|
|
return Reader{
|
|
.super = super,
|
|
.rdr = file,
|
|
.alloc = alloc,
|
|
};
|
|
}
|