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Diffstat (limited to 'vendor/go.opentelemetry.io/otel/internal/global/handler.go')
-rw-r--r--vendor/go.opentelemetry.io/otel/internal/global/handler.go103
1 files changed, 0 insertions, 103 deletions
diff --git a/vendor/go.opentelemetry.io/otel/internal/global/handler.go b/vendor/go.opentelemetry.io/otel/internal/global/handler.go
deleted file mode 100644
index 3dcd1caae..000000000
--- a/vendor/go.opentelemetry.io/otel/internal/global/handler.go
+++ /dev/null
@@ -1,103 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package global // import "go.opentelemetry.io/otel/internal/global"
-
-import (
- "log"
- "os"
- "sync/atomic"
- "unsafe"
-)
-
-var (
- // GlobalErrorHandler provides an ErrorHandler that can be used
- // throughout an OpenTelemetry instrumented project. When a user
- // specified ErrorHandler is registered (`SetErrorHandler`) all calls to
- // `Handle` and will be delegated to the registered ErrorHandler.
- GlobalErrorHandler = defaultErrorHandler()
-
- // Compile-time check that delegator implements ErrorHandler.
- _ ErrorHandler = (*ErrDelegator)(nil)
- // Compile-time check that errLogger implements ErrorHandler.
- _ ErrorHandler = (*ErrLogger)(nil)
-)
-
-// ErrorHandler handles irremediable events.
-type ErrorHandler interface {
- // Handle handles any error deemed irremediable by an OpenTelemetry
- // component.
- Handle(error)
-}
-
-type ErrDelegator struct {
- delegate unsafe.Pointer
-}
-
-func (d *ErrDelegator) Handle(err error) {
- d.getDelegate().Handle(err)
-}
-
-func (d *ErrDelegator) getDelegate() ErrorHandler {
- return *(*ErrorHandler)(atomic.LoadPointer(&d.delegate))
-}
-
-// setDelegate sets the ErrorHandler delegate.
-func (d *ErrDelegator) setDelegate(eh ErrorHandler) {
- atomic.StorePointer(&d.delegate, unsafe.Pointer(&eh))
-}
-
-func defaultErrorHandler() *ErrDelegator {
- d := &ErrDelegator{}
- d.setDelegate(&ErrLogger{l: log.New(os.Stderr, "", log.LstdFlags)})
- return d
-}
-
-// ErrLogger logs errors if no delegate is set, otherwise they are delegated.
-type ErrLogger struct {
- l *log.Logger
-}
-
-// Handle logs err if no delegate is set, otherwise it is delegated.
-func (h *ErrLogger) Handle(err error) {
- h.l.Print(err)
-}
-
-// GetErrorHandler returns the global ErrorHandler instance.
-//
-// The default ErrorHandler instance returned will log all errors to STDERR
-// until an override ErrorHandler is set with SetErrorHandler. All
-// ErrorHandler returned prior to this will automatically forward errors to
-// the set instance instead of logging.
-//
-// Subsequent calls to SetErrorHandler after the first will not forward errors
-// to the new ErrorHandler for prior returned instances.
-func GetErrorHandler() ErrorHandler {
- return GlobalErrorHandler
-}
-
-// SetErrorHandler sets the global ErrorHandler to h.
-//
-// The first time this is called all ErrorHandler previously returned from
-// GetErrorHandler will send errors to h instead of the default logging
-// ErrorHandler. Subsequent calls will set the global ErrorHandler, but not
-// delegate errors to h.
-func SetErrorHandler(h ErrorHandler) {
- GlobalErrorHandler.setDelegate(h)
-}
-
-// Handle is a convenience function for ErrorHandler().Handle(err).
-func Handle(err error) {
- GetErrorHandler().Handle(err)
-}