# INIT GUARD
The Init_Guard Crate provides a Synchronization Primitive, that can be used to guard against double initialization.
For this, the init_guard macro is exported.
The init_guard macro creates a new module that contains everything needed for the init_guard.
The Module contains two public Methods, init() and has_init().
## has_init()
The has_init function has the following definition:
```
fn has_init() -> bool
```
The has_init function returns true, if the init_guard was already initialized.
## init()
The init function has the following definition:
```
fn init() -> Result<(),()>
```
The init function returns Ok, if the init_guard was succesfully initialized and Err, if it was already initialized before
## Usage Example
```
init_guard!(HAS_LOGGER_INIT); // Create the init_guard
fn init_logger() -> Result<(),String> {
match HAS_LOGGER_INIT::init() {
Ok(_) => {},
Err(_) => {return Err("Logger is already initialized!".to_string())}
}
// Everything after this is now safe from double initialization
// Do your actual logger initialization here
}
```