Function set_vlogger 

pub fn set_vlogger(vlogger: &'static dyn VLog) -> Result<(), SetVLoggerError>

Sets the global vlogger to a &'static VLog.

This function may only be called once in the lifetime of a program. Any vlog events that occur before the call to set_vlogger completes will be ignored.

This function does not typically need to be called manually. VLogger implementations should provide an initialization method that installs the vlogger internally.

Availability

This method is available even when the std feature is disabled. However, it is currently unavailable on thumbv6 targets, which lack support for some atomic operations which are used by this function. Even on those targets, set_vlogger_racy will be available.

Errors

An error is returned if a vlogger has already been set.

Examples

use v_log::{message, Record, Metadata};

static MY_VLOGGER: MyVLogger = MyVLogger;

struct MyVLogger;

impl v_log::VLog for MyVLogger {...}

v_log::set_vlogger(&MY_VLOGGER).unwrap();

message!("hello vlog");