Crate ohos_hilog

A logger which writes to ohos output.

Example

#[macro_use] extern crate log;
extern crate ohos_hilog;

use log::LevelFilter;
use ohos_hilog::Config;

/// Ohos code may not have obvious "main", this is just an example.
fn main() {
    ohos_hilog::init_once(
        Config::default().with_max_level(LevelFilter::Trace),
    );

    debug!("this is a debug {}", "message");
    error!("this is printed by default");
}

Example with module path filter

It is possible to limit log messages to output from a specific crate, and override the logcat tag name (by default, the crate name is used):

#[macro_use] extern crate log;
extern crate ohos_hilog;

use log::LevelFilter;
use ohos_hilog::{Config,FilterBuilder};

fn main() {
    ohos_hilog::init_once(
        Config::default()
            .with_max_level(LevelFilter::Trace)
            .with_tag("mytag")
            .with_filter(FilterBuilder::new().parse("debug,hello::crate=trace").build()),
    );

    // ..
}

Example with a custom log formatter

use ohos_hilog::Config;

ohos_hilog::init_once(
    Config::default()
        .with_max_level(log::LevelFilter::Trace)
        .format(|f, record| write!(f, "my_app: {}", record.args()))
)

Structs

• Config
  Filter for ohos logger.
• Filter
  A log filter.
• FilterBuilder
  A builder for a log filter.
• Formatter
  A formatter to write logs into.
• OhosLogger
  Underlying ohos logger backend
• PlatformLogWriter

Functions

• init_once
  Initializes the global logger with an ohos logger.
• log
  Send a log record to Ohos logging backend.