synapsecns/sanguine

package metrics

import (
    "context"
    "github.com/synapsecns/sanguine/core/config"
    "sync"
)

var globalHandler Handler
var globalMux sync.RWMutex

// by default, use the null handler.
func init() {
    globalHandler = NewNullHandler()
}

// Setup sets up the global metrics handler. In general, we discourage globals
// but because of the ubiquitiy of global variables and the tangential nature
// of metrics, we allow this.
func Setup(ctx context.Context, buildInfo config.BuildInfo) error {
    globalMux.Lock()
    defer globalMux.Unlock()

    handler, err := NewFromEnv(ctx, buildInfo)
    if err != nil {
        return err
    }

    globalHandler = handler
    return nil
}

// Get gets the global handler.
func Get() Handler {
    globalMux.RLock()
    defer globalMux.RUnlock()
    return globalHandler
}