tiny.stabilizer.StackPads

1pub const StackPads = struct {2    allocator: Allocator,3    config: StackConfig,4    entries: []u8 = &.{},5    index: usize = 0,67    pub fn init(allocator: Allocator, stack_config: StackConfig, rng: *Marsaglia) !StackPads {8        var self: StackPads = .{9            .allocator = allocator,10            .config = normalizeStackConfig(stack_config),11        };12        if (self.config.enabled) {13            self.entries = try allocator.alloc(u8, self.config.entries);14            self.refill(rng);15        }16        return self;17    }1819    pub fn deinit(self: *StackPads) void {20        if (self.entries.len > 0) self.allocator.free(self.entries);21        self.* = undefined;22    }2324    pub fn refill(self: *StackPads, rng: *Marsaglia) void {25        for (self.entries) |*entry| entry.* = rng.nextByte();26        self.index = 0;27    }2829    pub fn next(self: *StackPads, rng: *Marsaglia) StackPad {30        if (!self.config.enabled) return .{ .unit = 0, .bytes = 0 };31        if (self.index >= self.entries.len) self.refill(rng);32        const unit = self.entries[self.index];33        self.index += 1;34        return .{ .unit = unit, .bytes = @as(usize, unit) * self.config.alignment };35    }36};

1pub const StackPads = stack_mod.StackPads;