IO Utilities API

Centralized in src/io/.

AnyIO

• defaultIo() — returns the appropriate std.Io for test or runtime context
• sleepMs(ms: u64) — sleep using the canonical IO
• sleepMsI(ms: i64) — sleep using the canonical IO (signed)
• AnyReader — type-erased reader with read, readByte, readNoEof
• AnyWriter — type-erased writer with write, writeAll, print

Buffer

Dynamic, growable byte buffer.

• init(allocator, capacity) — create buffer
• append(bytes) — append bytes
• toOwnedSlice() — return owned slice
• clear() — reset without deallocating
• deinit() — release memory

FixedBuffer

Stack-allocated fixed-size buffer with no heap allocation.

var buf = FixedBuffer(64){};

BufferPool

Pre-allocated buffer pool with slot-based ownership tracking, acquire/release semantics, and detection of foreign/double-release buffers.

• init(allocator, config) — create a pool
• acquire() — get a buffer from the pool
• release(buffer) — return a buffer to the pool
• stats() — get pool statistics (total, available, acquired, leaks, errors)
• deinit() — release all resources

Root-level alias: httpx.BufferPool.

Base64

RFC 4648 base64 with standard and URL-safe alphabets.

• encode(allocator, data) — encode to base64
• decode(allocator, data) — decode from base64
• encodeUrl(allocator, data) — URL-safe encoding

Hex

• encode(allocator, data) — hex encode
• decode(allocator, data) — hex decode

PercentEncoding

RFC 3986 URL encoding.

• encode(allocator, input) — percent-encode
• decode(allocator, input) — percent-decode