feat(benchmark): add lifecycle hooks for enhanced benchmark control

[hendriknielaender]

Add Lifecycle Hooks

This PR introduces lifecycle hooks, providing users with greater control and flexibility over their benchmark setup and teardown processes. These hooks allow for custom actions at various stages of the benchmarking lifecycle, enabling precise environment management and setup/teardown operations.

New Features:

• Lifecycle Hooks: Implement beforeAll, afterAll, beforeEach, and afterEach hooks.
  • beforeAll: Executes once before all benchmarks begin.
  • afterAll: Executes once after all benchmarks have completed.
  • beforeEach: Executes before each individual benchmark iteration.
  • afterEach: Executes after each individual benchmark iteration.

Use Cases:

These hooks are particularly beneficial for complex benchmarks requiring specific setup and teardown operations, ensuring each test runs under the right conditions and managing resources properly.

Implementation:

Hooks are optional and easy to integrate into existing tests with minimal configuration, defined within the LifecycleHooks struct and included in the benchmark Config struct. This enhancement aims to provide a seamless and flexible user experience for benchmarking.

Example Usage:

const hooks = .{
    .beforeAll = fn() void { /* global setup */ },
    .afterAll = fn() void { /* global teardown */ },
    .beforeEach = fn() void { /* per-test setup */ },
    .afterEach = fn() void { /* per-test teardown */ },
};
var config = Benchmark.Config{ .hooks = hooks };

closes #41

[FObersteiner]

Looks cool to me in principle! Up next, we would need an example that makes use of the hooks.

Besides, I was hoping for Zig 0.12 to be released around February, so we could make the upgrade to that version. But... seems like we need to wait some more.

[hendriknielaender]

we would need an example that makes use of the hooks

Good call, i have added an issue to tackle this. #58

Yeah as soon as 0.12 is released, we will upgrade.