Prevent calls that modify an event buffer from succeeding

# EventBuffer::freeze

(PECL event >= 1.2.6-beta)

EventBuffer::freeze — Prevent calls that modify an event buffer from succeeding

### 説明

public EventBuffer::freeze ( bool `$at_front` ) : bool

Prevent calls that modify an event buffer from succeeding

### パラメータ

`at_front`

  Whether to disable changes to the front or end of the buffer.

### 返り値

Returns `TRUE` on success. Otherwise `FALSE`.

### 参考

- EventBuffer::unfreeze() - Re-enable calls that modify an event buffer